How to Load an Audio-to-Score Alignment Corpus and Compare Performances

PerformancePrecisionLoader, MetricMap, granularity-tagged MatchClaims, tempo comparison

How to Load an Audio-to-Score Alignment Corpus and Compare Performances

A Performance Precision specimen bundles one symbolic score with several recorded performances of it, plus the audio-to-score alignments that connect them. This guide loads such a specimen in a single call and arrives at the question the corpus was built to answer: how do different pianists shape the same piece in time?

The specimen here is Chopin’s Nocturne in E♭ major, Op. 9 No. 2 — a .solo score, a Verovio timemap giving each measure’s position in quarter notes, and an Alignments/ directory holding three alignment files (note, bar, beat) for each of seven recordings. By the end we will read, for one shared score position, the seven different moments at which each pianist played it.

The arc:

  1. Load the whole specimen in one call.
  2. Inspect the measure structure recovered from the timemap.
  3. Read the score (in quarters) and see how a measure+offset label resolves.
  4. Read the per-performer s (in seconds).
  5. Inspect the s, tagged by granularity.
  6. Compare the performers’ timing through the .

Setup

from __future__ import annotations

from collections import Counter
from fractions import Fraction

import pandas as pd

from timetoalign.core import EnharmonicPitch
from timetoalign.loader.alignment import PerformancePrecisionLoader
from timetoalign.loader.tabular.solo import SoloLoader
from timetoalign.testdata import ensure_data

SPECIMEN_DIR = ensure_data("performance_precision")
SOLO_FILE = SPECIMEN_DIR / "Chopin Nocturne Op. 9 No. 2.solo"
/home/laser/miniconda3/envs/timetoalign/lib/python3.11/site-packages/partitura/__init__.py:9: UserWarning: pkg_resources is deprecated as an API. See https://setuptools.pypa.io/en/latest/pkg_resources.html. The pkg_resources package is slated for removal as early as 2025-11-30. Refrain from using this package or pin to Setuptools<81.
  import pkg_resources

1. Load the specimen in one call

ingests the whole directory — the .solo score, the Verovio timemap, and every per-performer alignment file — through the standard two-phase loader pattern. from_file() is the one-line form.

loader = PerformancePrecisionLoader.from_file(SPECIMEN_DIR)
loader

PerformancePrecisionLoader

Sources 3 file(s): Chopin Nocturne Op. 9 No. 2.solo, Chopin Nocturne Op. 9 No. 2.json, Alignments
Events 0
Try create_timeline(), create_timelines(), create_bundle()

Seven recordings, and a few thousand s linking the score to them. Everything below reads from this single loaded object.

2. The measure structure

The Verovio timemap records each measure’s absolute position in quarter notes. The loader walks it into a — a from a quarter position to its measure count — and exposes it directly:

metric_map = loader.metric_map
metric_map
MetricMap(n_measures=38, total_length=425/2)

Thirty-eight measures spanning 212.5 quarters. The companion .meter file is deliberately left unread: it encodes only meter changes (four rows across the whole piece), so it cannot by itself bound the final measure. The timemap’s terminal position supplies that bound, which is why it is preferred here.

The paired is a carrying both directions of the measure↔︎quarter relationship. quarters_at(mc, beat) goes from a metrical position to a quarter coordinate; mn_at(quarters) returns the measure-number label at a quarter position:

metrical_position_map = loader.metrical_position_map

{
    "downbeat of MC 2 (quarters)": metrical_position_map.quarters_at(2),
    "downbeat of MC 3 (quarters)": metrical_position_map.quarters_at(3),
    "measure label at quarter 0.0": metrical_position_map.mn_at(0.0),
    "measure label at quarter 7.0": metrical_position_map.mn_at(7.0),
}
{'downbeat of MC 2 (quarters)': Fraction(1, 2),
 'downbeat of MC 3 (quarters)': Fraction(13, 2),
 'measure label at quarter 0.0': '1',
 'measure label at quarter 7.0': '3'}

3. The score timeline

The score is a logical measured in quarters. It holds every note of the .solo score, each placed at its absolute quarter position. Its stored UID is score:clt1.

score_tl = loader.create_timeline(uid="score:clt1")
score_tl
ContinuousLogicalTimeline[score:clt1] (2494 events, 1 cmaps)
                      0 _______________________________ 212.5 quarters

How a measure+offset label becomes a quarter coordinate

Both the .solo score and the alignment files write score positions as "<measure>+<offset>", where the offset is given in whole notes. The resolver is one line of arithmetic — measure_start + offset × 4 (the × 4 converts whole notes to quarters) — with one wrinkle: measure 0 is the anacrusis (the pickup), whose offsets are measured back from a virtual full-bar downbeat preceding the first sounding note. The very first note of the piece, labelled 0+11/8, therefore lands exactly on quarter 0:

first_three = score_tl.get_events().table.slice(0, 3).to_pandas()
first_three[["id", "start"]]
id start
0 score:0 {'value': 0.0, 'numerator': 0, 'denominator': 1}
1 score:1 {'value': 0.5, 'numerator': 1, 'denominator': 2}
2 score:2 {'value': 0.5, 'numerator': 1, 'denominator': 2}

A is the primary way to query the score timeline at a coordinate — here the downbeat of the first full measure, half a quarter in:

score_tl.get_timestamp(Fraction(1, 2))
TimeStamp interpolated
ID Coordinate Type
score:clt1 0.5 quarters axis
Try: ts.get(<tl_id>), ts.get_unit(<unit>)

A note on pitch

The score timeline carries pitch as the raw MIDI pitch integer that the .solo file recorded — faithful to the source, which notes no accidental spelling. When a typed pitch field is wanted, it lives on a freshly composed SoloLoader reading the same .solo file. There the field materialises as EnharmonicPitch scalars, and the canonical glyphs ♯/♭ render in their labels:

solo = SoloLoader.from_file(SOLO_FILE)
pitch_field = solo.events.get_field(EnharmonicPitch)
{"first five pitches": [pitch_field[i] for i in range(5)]}
{'first five pitches': [EP(A♯/B♭4),
  EP(A♯/B♭4),
  EP(D♯/E♭2),
  EP(G5),
  EP(D♯/E♭2)]}

Because .solo records only the MIDI pitch number, an enharmonic pair such as G♯3 and A♭3 both surface as the same number — the field reports what was represented, not what could be inferred.

4. The performance timelines

Each recording is a physical measured in seconds, one event per aligned note onset. Their stored UIDs follow perf:<performer>:cpt1, so the Ashkenazy recording is perf:Chopin_Ashkenazy:cpt1:

performer_keys = [tl.name for tl in loader.create_timelines() if tl is not score_tl]
performer_keys
['Chopin_Ashkenazy',
 'Chopin_Barenboim',
 'Chopin_Freire',
 'Chopin_Horowitz',
 'Chopin_Pollini',
 'Chopin_Rachmaninoff',
 'Chopin_Rubinstein']
ashkenazy = loader.create_timeline(uid="perf:Chopin_Ashkenazy:cpt1")
ashkenazy
ContinuousPhysicalTimeline[perf:Chopin_Ashkenazy:cpt1] (480 events)
                      0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 209.1 seconds

A score position is in quarters; a performance position is in seconds. The alignment is what relates the two, and that is carried by the s.

5. The granularity-tagged MatchClaims

The assembles the loaded data: the score in its own group, each performance standalone, and every alignment row as a cross-group .

bundle = loader.create_bundle()
bundle
AlignmentBundle[bundle:AlignmentBundle_1]

  TimelineGroup[score] (1 timelines, 2 timestamps)
  ┌────────────────────────────────────────────────────────────────────────────┐
  │ ContinuousLogicalTimeline[score:clt1] (2494 events, 1 cmaps)               │
  │                       0 ___________________________________ 212.5 quarters │
  └────────────────────────────────────────────────────────────────────────────┘
  Timestamps: 2

  Standalone timelines (7):
    Chopin_As...     0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 209.1 seconds (480 ev)
    Chopin_Ba...     0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 231.9 seconds (480 ev)
    Chopin_Fr...     0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 216.2 seconds (480 ev)
    ... (1 more)
    Chopin_Po...     0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 208.7 seconds (480 ev)
    Chopin_Ra...     0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 256.9 seconds (480 ev)
    Chopin_Ru...     0 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 227.1 seconds (480 ev)

  MatchClaims: 6769

Each recording was aligned at three granularities — note, bar, and beat — and the loader records which one produced each claim in its provenance metadata: the aligning agent’s identifier carries the granularity. Counting the claims for one performer shows the shape of a single recording’s alignment. A claim prints its unmatched score coordinate (score:clt1@…) so the dangling position stays legible at a glance:

bundle.cross_group_claims
[MatchClaim(instant: score:clt1@0.0 <-> perf:Chopin_Ashkenazy:cpt1@9.5),
 MatchClaim(instant: score:clt1@0.5 <-> perf:Chopin_Ashkenazy:cpt1@10.3),
 MatchClaim(instant: score:clt1@1.0 <-> perf:Chopin_Ashkenazy:cpt1@11.1),
 MatchClaim(instant: score:clt1@1.5 <-> perf:Chopin_Ashkenazy:cpt1@11.6),
 MatchClaim(instant: score:clt1@2.0 <-> perf:Chopin_Ashkenazy:cpt1@12.0),
 MatchClaim(instant: score:clt1@2.5 <-> perf:Chopin_Ashkenazy:cpt1@12.4),
 MatchClaim(instant: score:clt1@3.0 <-> perf:Chopin_Ashkenazy:cpt1@12.9),
 MatchClaim(instant: score:clt1@3.5 <-> perf:Chopin_Ashkenazy:cpt1@13.4),
 MatchClaim(instant: score:clt1@4.0 <-> perf:Chopin_Ashkenazy:cpt1@13.9),
 MatchClaim(instant: score:clt1@4.5 <-> perf:Chopin_Ashkenazy:cpt1@14.4),
 MatchClaim(instant: score:clt1@5.0 <-> perf:Chopin_Ashkenazy:cpt1@14.8),
 MatchClaim(instant: score:clt1@5.5 <-> perf:Chopin_Ashkenazy:cpt1@15.2),
 MatchClaim(instant: score:clt1@6.0 <-> perf:Chopin_Ashkenazy:cpt1@15.6),
 MatchClaim(instant: score:clt1@6.5 <-> perf:Chopin_Ashkenazy:cpt1@16.2),
 MatchClaim(instant: score:clt1@7.0 <-> perf:Chopin_Ashkenazy:cpt1@16.6),
 MatchClaim(instant: score:clt1@7.5 <-> perf:Chopin_Ashkenazy:cpt1@17.0),
 MatchClaim(instant: score:clt1@8.0 <-> perf:Chopin_Ashkenazy:cpt1@17.7),
 MatchClaim(instant: score:clt1@8.5 <-> perf:Chopin_Ashkenazy:cpt1@18.1),
 MatchClaim(instant: score:clt1@9.0 <-> perf:Chopin_Ashkenazy:cpt1@18.6),
 MatchClaim(instant: score:clt1@9.5 <-> perf:Chopin_Ashkenazy:cpt1@19.1),
 MatchClaim(instant: score:clt1@10.0 <-> perf:Chopin_Ashkenazy:cpt1@19.5),
 MatchClaim(instant: score:clt1@10.5 <-> perf:Chopin_Ashkenazy:cpt1@19.9),
 MatchClaim(instant: score:clt1@11.0 <-> perf:Chopin_Ashkenazy:cpt1@20.3),
 MatchClaim(instant: score:clt1@11.5 <-> perf:Chopin_Ashkenazy:cpt1@20.6),
 MatchClaim(instant: score:clt1@12.0 <-> perf:Chopin_Ashkenazy:cpt1@21.0),
 MatchClaim(instant: score:clt1@12.5 <-> perf:Chopin_Ashkenazy:cpt1@21.5),
 MatchClaim(instant: score:clt1@13.0 <-> perf:Chopin_Ashkenazy:cpt1@21.8),
 MatchClaim(instant: score:clt1@13.5 <-> perf:Chopin_Ashkenazy:cpt1@22.2),
 MatchClaim(instant: score:clt1@14.0 <-> perf:Chopin_Ashkenazy:cpt1@22.7),
 MatchClaim(instant: score:clt1@14.5 <-> perf:Chopin_Ashkenazy:cpt1@23.0),
 MatchClaim(instant: score:clt1@15.0 <-> perf:Chopin_Ashkenazy:cpt1@23.4),
 MatchClaim(instant: score:clt1@15.5 <-> perf:Chopin_Ashkenazy:cpt1@23.8),
 MatchClaim(instant: score:clt1@16.0 <-> perf:Chopin_Ashkenazy:cpt1@24.2),
 MatchClaim(instant: score:clt1@16.5 <-> perf:Chopin_Ashkenazy:cpt1@24.6),
 MatchClaim(instant: score:clt1@17.0 <-> perf:Chopin_Ashkenazy:cpt1@25.0),
 MatchClaim(instant: score:clt1@17.5 <-> perf:Chopin_Ashkenazy:cpt1@25.4),
 MatchClaim(instant: score:clt1@18.0 <-> perf:Chopin_Ashkenazy:cpt1@25.7),
 MatchClaim(instant: score:clt1@18.5 <-> perf:Chopin_Ashkenazy:cpt1@26.3),
 MatchClaim(instant: score:clt1@19.0 <-> perf:Chopin_Ashkenazy:cpt1@26.9),
 MatchClaim(instant: score:clt1@19.5 <-> perf:Chopin_Ashkenazy:cpt1@27.4),
 MatchClaim(instant: score:clt1@20.0 <-> perf:Chopin_Ashkenazy:cpt1@27.9),
 MatchClaim(instant: score:clt1@20.2 <-> perf:Chopin_Ashkenazy:cpt1@28.2),
 MatchClaim(instant: score:clt1@20.5 <-> perf:Chopin_Ashkenazy:cpt1@28.4),
 MatchClaim(instant: score:clt1@20.8 <-> perf:Chopin_Ashkenazy:cpt1@28.6),
 MatchClaim(instant: score:clt1@21.0 <-> perf:Chopin_Ashkenazy:cpt1@28.9),
 MatchClaim(instant: score:clt1@21.2 <-> perf:Chopin_Ashkenazy:cpt1@29.2),
 MatchClaim(instant: score:clt1@21.5 <-> perf:Chopin_Ashkenazy:cpt1@29.6),
 MatchClaim(instant: score:clt1@22.0 <-> perf:Chopin_Ashkenazy:cpt1@30.0),
 MatchClaim(instant: score:clt1@22.5 <-> perf:Chopin_Ashkenazy:cpt1@30.4),
 MatchClaim(instant: score:clt1@23.0 <-> perf:Chopin_Ashkenazy:cpt1@30.9),
 MatchClaim(instant: score:clt1@23.5 <-> perf:Chopin_Ashkenazy:cpt1@31.3),
 MatchClaim(instant: score:clt1@24.0 <-> perf:Chopin_Ashkenazy:cpt1@31.9),
 MatchClaim(instant: score:clt1@24.5 <-> perf:Chopin_Ashkenazy:cpt1@32.7),
 MatchClaim(instant: score:clt1@25.0 <-> perf:Chopin_Ashkenazy:cpt1@33.3),
 MatchClaim(instant: score:clt1@25.5 <-> perf:Chopin_Ashkenazy:cpt1@33.7),
 MatchClaim(instant: score:clt1@26.0 <-> perf:Chopin_Ashkenazy:cpt1@34.3),
 MatchClaim(instant: score:clt1@26.2 <-> perf:Chopin_Ashkenazy:cpt1@34.6),
 MatchClaim(instant: score:clt1@26.5 <-> perf:Chopin_Ashkenazy:cpt1@34.9),
 MatchClaim(instant: score:clt1@26.8 <-> perf:Chopin_Ashkenazy:cpt1@35.2),
 MatchClaim(instant: score:clt1@27.0 <-> perf:Chopin_Ashkenazy:cpt1@35.4),
 MatchClaim(instant: score:clt1@27.2 <-> perf:Chopin_Ashkenazy:cpt1@35.7),
 MatchClaim(instant: score:clt1@27.5 <-> perf:Chopin_Ashkenazy:cpt1@36.0),
 MatchClaim(instant: score:clt1@28.0 <-> perf:Chopin_Ashkenazy:cpt1@36.6),
 MatchClaim(instant: score:clt1@28.5 <-> perf:Chopin_Ashkenazy:cpt1@37.1),
 MatchClaim(instant: score:clt1@29.0 <-> perf:Chopin_Ashkenazy:cpt1@37.5),
 MatchClaim(instant: score:clt1@29.2 <-> perf:Chopin_Ashkenazy:cpt1@37.6),
 MatchClaim(instant: score:clt1@29.5 <-> perf:Chopin_Ashkenazy:cpt1@37.8),
 MatchClaim(instant: score:clt1@29.8 <-> perf:Chopin_Ashkenazy:cpt1@38.1),
 MatchClaim(instant: score:clt1@30.0 <-> perf:Chopin_Ashkenazy:cpt1@38.3),
 MatchClaim(instant: score:clt1@30.2 <-> perf:Chopin_Ashkenazy:cpt1@38.6),
 MatchClaim(instant: score:clt1@30.5 <-> perf:Chopin_Ashkenazy:cpt1@38.8),
 MatchClaim(instant: score:clt1@30.8 <-> perf:Chopin_Ashkenazy:cpt1@39.1),
 MatchClaim(instant: score:clt1@31.0 <-> perf:Chopin_Ashkenazy:cpt1@39.3),
 MatchClaim(instant: score:clt1@31.2 <-> perf:Chopin_Ashkenazy:cpt1@39.5),
 MatchClaim(instant: score:clt1@31.5 <-> perf:Chopin_Ashkenazy:cpt1@39.7),
 MatchClaim(instant: score:clt1@31.8 <-> perf:Chopin_Ashkenazy:cpt1@39.9),
 MatchClaim(instant: score:clt1@32.0 <-> perf:Chopin_Ashkenazy:cpt1@40.1),
 MatchClaim(instant: score:clt1@32.2 <-> perf:Chopin_Ashkenazy:cpt1@40.3),
 MatchClaim(instant: score:clt1@32.5 <-> perf:Chopin_Ashkenazy:cpt1@40.5),
 MatchClaim(instant: score:clt1@32.8 <-> perf:Chopin_Ashkenazy:cpt1@40.7),
 MatchClaim(instant: score:clt1@33.0 <-> perf:Chopin_Ashkenazy:cpt1@41.0),
 MatchClaim(instant: score:clt1@33.2 <-> perf:Chopin_Ashkenazy:cpt1@41.3),
 MatchClaim(instant: score:clt1@33.5 <-> perf:Chopin_Ashkenazy:cpt1@41.7),
 MatchClaim(instant: score:clt1@34.0 <-> perf:Chopin_Ashkenazy:cpt1@42.2),
 MatchClaim(instant: score:clt1@34.5 <-> perf:Chopin_Ashkenazy:cpt1@42.6),
 MatchClaim(instant: score:clt1@35.0 <-> perf:Chopin_Ashkenazy:cpt1@43.1),
 MatchClaim(instant: score:clt1@35.5 <-> perf:Chopin_Ashkenazy:cpt1@43.5),
 MatchClaim(instant: score:clt1@36.0 <-> perf:Chopin_Ashkenazy:cpt1@43.9),
 MatchClaim(instant: score:clt1@36.5 <-> perf:Chopin_Ashkenazy:cpt1@44.3),
 MatchClaim(instant: score:clt1@37.0 <-> perf:Chopin_Ashkenazy:cpt1@44.7),
 MatchClaim(instant: score:clt1@37.5 <-> perf:Chopin_Ashkenazy:cpt1@45.1),
 MatchClaim(instant: score:clt1@38.0 <-> perf:Chopin_Ashkenazy:cpt1@45.6),
 MatchClaim(instant: score:clt1@38.5 <-> perf:Chopin_Ashkenazy:cpt1@46.1),
 MatchClaim(instant: score:clt1@39.0 <-> perf:Chopin_Ashkenazy:cpt1@46.6),
 MatchClaim(instant: score:clt1@39.5 <-> perf:Chopin_Ashkenazy:cpt1@47.0),
 MatchClaim(instant: score:clt1@40.0 <-> perf:Chopin_Ashkenazy:cpt1@47.4),
 MatchClaim(instant: score:clt1@40.5 <-> perf:Chopin_Ashkenazy:cpt1@47.8),
 MatchClaim(instant: score:clt1@41.0 <-> perf:Chopin_Ashkenazy:cpt1@48.2),
 MatchClaim(instant: score:clt1@41.5 <-> perf:Chopin_Ashkenazy:cpt1@48.6),
 MatchClaim(instant: score:clt1@42.0 <-> perf:Chopin_Ashkenazy:cpt1@49.0),
 MatchClaim(instant: score:clt1@42.5 <-> perf:Chopin_Ashkenazy:cpt1@49.6),
 MatchClaim(instant: score:clt1@43.0 <-> perf:Chopin_Ashkenazy:cpt1@50.3),
 MatchClaim(instant: score:clt1@43.5 <-> perf:Chopin_Ashkenazy:cpt1@50.7),
 MatchClaim(instant: score:clt1@44.0 <-> perf:Chopin_Ashkenazy:cpt1@51.3),
 MatchClaim(instant: score:clt1@44.2 <-> perf:Chopin_Ashkenazy:cpt1@51.6),
 MatchClaim(instant: score:clt1@44.5 <-> perf:Chopin_Ashkenazy:cpt1@51.9),
 MatchClaim(instant: score:clt1@44.8 <-> perf:Chopin_Ashkenazy:cpt1@52.1),
 MatchClaim(instant: score:clt1@45.0 <-> perf:Chopin_Ashkenazy:cpt1@52.6),
 MatchClaim(instant: score:clt1@45.2 <-> perf:Chopin_Ashkenazy:cpt1@53.1),
 MatchClaim(instant: score:clt1@45.5 <-> perf:Chopin_Ashkenazy:cpt1@53.4),
 MatchClaim(instant: score:clt1@46.0 <-> perf:Chopin_Ashkenazy:cpt1@54.0),
 MatchClaim(instant: score:clt1@46.5 <-> perf:Chopin_Ashkenazy:cpt1@54.5),
 MatchClaim(instant: score:clt1@47.0 <-> perf:Chopin_Ashkenazy:cpt1@54.9),
 MatchClaim(instant: score:clt1@47.5 <-> perf:Chopin_Ashkenazy:cpt1@55.3),
 MatchClaim(instant: score:clt1@48.0 <-> perf:Chopin_Ashkenazy:cpt1@55.9),
 MatchClaim(instant: score:clt1@48.5 <-> perf:Chopin_Ashkenazy:cpt1@56.6),
 MatchClaim(instant: score:clt1@49.0 <-> perf:Chopin_Ashkenazy:cpt1@57.1),
 MatchClaim(instant: score:clt1@49.5 <-> perf:Chopin_Ashkenazy:cpt1@57.5),
 MatchClaim(instant: score:clt1@50.0 <-> perf:Chopin_Ashkenazy:cpt1@58.0),
 MatchClaim(instant: score:clt1@50.5 <-> perf:Chopin_Ashkenazy:cpt1@58.5),
 MatchClaim(instant: score:clt1@51.0 <-> perf:Chopin_Ashkenazy:cpt1@59.0),
 MatchClaim(instant: score:clt1@51.5 <-> perf:Chopin_Ashkenazy:cpt1@59.8),
 MatchClaim(instant: score:clt1@52.0 <-> perf:Chopin_Ashkenazy:cpt1@60.4),
 MatchClaim(instant: score:clt1@52.5 <-> perf:Chopin_Ashkenazy:cpt1@60.9),
 MatchClaim(instant: score:clt1@53.0 <-> perf:Chopin_Ashkenazy:cpt1@61.3),
 MatchClaim(instant: score:clt1@53.5 <-> perf:Chopin_Ashkenazy:cpt1@61.7),
 MatchClaim(instant: score:clt1@54.0 <-> perf:Chopin_Ashkenazy:cpt1@62.1),
 MatchClaim(instant: score:clt1@54.5 <-> perf:Chopin_Ashkenazy:cpt1@62.8),
 MatchClaim(instant: score:clt1@55.0 <-> perf:Chopin_Ashkenazy:cpt1@63.3),
 MatchClaim(instant: score:clt1@55.5 <-> perf:Chopin_Ashkenazy:cpt1@63.8),
 MatchClaim(instant: score:clt1@56.0 <-> perf:Chopin_Ashkenazy:cpt1@64.3),
 MatchClaim(instant: score:clt1@56.5 <-> perf:Chopin_Ashkenazy:cpt1@64.9),
 MatchClaim(instant: score:clt1@56.8 <-> perf:Chopin_Ashkenazy:cpt1@65.1),
 MatchClaim(instant: score:clt1@57.0 <-> perf:Chopin_Ashkenazy:cpt1@65.6),
 MatchClaim(instant: score:clt1@57.4 <-> perf:Chopin_Ashkenazy:cpt1@66.3),
 MatchClaim(instant: score:clt1@57.5 <-> perf:Chopin_Ashkenazy:cpt1@66.6),
 MatchClaim(instant: score:clt1@58.0 <-> perf:Chopin_Ashkenazy:cpt1@67.2),
 MatchClaim(instant: score:clt1@58.5 <-> perf:Chopin_Ashkenazy:cpt1@67.6),
 MatchClaim(instant: score:clt1@59.0 <-> perf:Chopin_Ashkenazy:cpt1@68.0),
 MatchClaim(instant: score:clt1@59.5 <-> perf:Chopin_Ashkenazy:cpt1@68.4),
 MatchClaim(instant: score:clt1@60.0 <-> perf:Chopin_Ashkenazy:cpt1@68.8),
 MatchClaim(instant: score:clt1@60.5 <-> perf:Chopin_Ashkenazy:cpt1@69.4),
 MatchClaim(instant: score:clt1@61.0 <-> perf:Chopin_Ashkenazy:cpt1@69.8),
 MatchClaim(instant: score:clt1@61.5 <-> perf:Chopin_Ashkenazy:cpt1@70.2),
 MatchClaim(instant: score:clt1@62.0 <-> perf:Chopin_Ashkenazy:cpt1@70.6),
 MatchClaim(instant: score:clt1@62.5 <-> perf:Chopin_Ashkenazy:cpt1@70.9),
 MatchClaim(instant: score:clt1@63.0 <-> perf:Chopin_Ashkenazy:cpt1@71.3),
 MatchClaim(instant: score:clt1@63.5 <-> perf:Chopin_Ashkenazy:cpt1@71.8),
 MatchClaim(instant: score:clt1@64.0 <-> perf:Chopin_Ashkenazy:cpt1@72.2),
 MatchClaim(instant: score:clt1@64.5 <-> perf:Chopin_Ashkenazy:cpt1@72.6),
 MatchClaim(instant: score:clt1@65.0 <-> perf:Chopin_Ashkenazy:cpt1@73.0),
 MatchClaim(instant: score:clt1@65.5 <-> perf:Chopin_Ashkenazy:cpt1@73.3),
 MatchClaim(instant: score:clt1@66.0 <-> perf:Chopin_Ashkenazy:cpt1@73.7),
 MatchClaim(instant: score:clt1@66.5 <-> perf:Chopin_Ashkenazy:cpt1@74.2),
 MatchClaim(instant: score:clt1@67.0 <-> perf:Chopin_Ashkenazy:cpt1@74.5),
 MatchClaim(instant: score:clt1@67.5 <-> perf:Chopin_Ashkenazy:cpt1@74.9),
 MatchClaim(instant: score:clt1@68.0 <-> perf:Chopin_Ashkenazy:cpt1@75.4),
 MatchClaim(instant: score:clt1@68.5 <-> perf:Chopin_Ashkenazy:cpt1@75.8),
 MatchClaim(instant: score:clt1@69.0 <-> perf:Chopin_Ashkenazy:cpt1@76.2),
 MatchClaim(instant: score:clt1@69.5 <-> perf:Chopin_Ashkenazy:cpt1@76.7),
 MatchClaim(instant: score:clt1@70.0 <-> perf:Chopin_Ashkenazy:cpt1@77.4),
 MatchClaim(instant: score:clt1@70.5 <-> perf:Chopin_Ashkenazy:cpt1@78.0),
 MatchClaim(instant: score:clt1@71.0 <-> perf:Chopin_Ashkenazy:cpt1@78.5),
 MatchClaim(instant: score:clt1@71.5 <-> perf:Chopin_Ashkenazy:cpt1@79.1),
 MatchClaim(instant: score:clt1@72.0 <-> perf:Chopin_Ashkenazy:cpt1@79.8),
 MatchClaim(instant: score:clt1@72.5 <-> perf:Chopin_Ashkenazy:cpt1@80.6),
 MatchClaim(instant: score:clt1@73.0 <-> perf:Chopin_Ashkenazy:cpt1@81.7),
 MatchClaim(instant: score:clt1@73.5 <-> perf:Chopin_Ashkenazy:cpt1@82.4),
 MatchClaim(instant: score:clt1@73.8 <-> perf:Chopin_Ashkenazy:cpt1@82.7),
 MatchClaim(instant: score:clt1@74.0 <-> perf:Chopin_Ashkenazy:cpt1@83.0),
 MatchClaim(instant: score:clt1@74.2 <-> perf:Chopin_Ashkenazy:cpt1@83.2),
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 MatchClaim(instant: score:clt1@74.8 <-> perf:Chopin_Ashkenazy:cpt1@83.7),
 MatchClaim(instant: score:clt1@75.0 <-> perf:Chopin_Ashkenazy:cpt1@84.1),
 MatchClaim(instant: score:clt1@75.4 <-> perf:Chopin_Ashkenazy:cpt1@84.5),
 MatchClaim(instant: score:clt1@75.5 <-> perf:Chopin_Ashkenazy:cpt1@84.7),
 MatchClaim(instant: score:clt1@76.0 <-> perf:Chopin_Ashkenazy:cpt1@85.2),
 MatchClaim(instant: score:clt1@76.5 <-> perf:Chopin_Ashkenazy:cpt1@85.7),
 MatchClaim(instant: score:clt1@77.0 <-> perf:Chopin_Ashkenazy:cpt1@86.2),
 MatchClaim(instant: score:clt1@77.2 <-> perf:Chopin_Ashkenazy:cpt1@86.4),
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 MatchClaim(instant: score:clt1@78.0 <-> perf:Chopin_Ashkenazy:cpt1@87.1),
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 MatchClaim(instant: score:clt1@81.0 <-> perf:Chopin_Ashkenazy:cpt1@89.7),
 MatchClaim(instant: score:clt1@81.2 <-> perf:Chopin_Ashkenazy:cpt1@90.0),
 MatchClaim(instant: score:clt1@81.5 <-> perf:Chopin_Ashkenazy:cpt1@90.4),
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 MatchClaim(instant: score:clt1@146.5 <-> perf:Chopin_Ashkenazy:cpt1@162.3),
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 MatchClaim(instant: score:clt1@149.0 <-> perf:Chopin_Ashkenazy:cpt1@165.3),
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 MatchClaim(instant: score:clt1@150.0 <-> perf:Chopin_Ashkenazy:cpt1@166.3),
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 MatchClaim(instant: score:clt1@151.0 <-> perf:Chopin_Ashkenazy:cpt1@167.9),
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 MatchClaim(instant: score:clt1@152.0 <-> perf:Chopin_Ashkenazy:cpt1@168.9),
 MatchClaim(instant: score:clt1@152.2 <-> perf:Chopin_Ashkenazy:cpt1@169.2),
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 MatchClaim(instant: score:clt1@152.8 <-> perf:Chopin_Ashkenazy:cpt1@169.8),
 MatchClaim(instant: score:clt1@153.0 <-> perf:Chopin_Ashkenazy:cpt1@170.0),
 MatchClaim(instant: score:clt1@153.2 <-> perf:Chopin_Ashkenazy:cpt1@170.3),
 MatchClaim(instant: score:clt1@153.5 <-> perf:Chopin_Ashkenazy:cpt1@170.6),
 MatchClaim(instant: score:clt1@154.0 <-> perf:Chopin_Ashkenazy:cpt1@171.2),
 MatchClaim(instant: score:clt1@154.5 <-> perf:Chopin_Ashkenazy:cpt1@171.8),
 MatchClaim(instant: score:clt1@155.0 <-> perf:Chopin_Ashkenazy:cpt1@173.0),
 MatchClaim(instant: score:clt1@155.5 <-> perf:Chopin_Ashkenazy:cpt1@173.7),
 MatchClaim(instant: score:clt1@156.0 <-> perf:Chopin_Ashkenazy:cpt1@174.2),
 MatchClaim(instant: score:clt1@156.5 <-> perf:Chopin_Ashkenazy:cpt1@174.8),
 MatchClaim(instant: score:clt1@157.0 <-> perf:Chopin_Ashkenazy:cpt1@175.4),
 MatchClaim(instant: score:clt1@157.5 <-> perf:Chopin_Ashkenazy:cpt1@175.8),
 MatchClaim(instant: score:clt1@158.0 <-> perf:Chopin_Ashkenazy:cpt1@176.3),
 MatchClaim(instant: score:clt1@158.5 <-> perf:Chopin_Ashkenazy:cpt1@176.7),
 MatchClaim(instant: score:clt1@159.0 <-> perf:Chopin_Ashkenazy:cpt1@177.1),
 MatchClaim(instant: score:clt1@159.5 <-> perf:Chopin_Ashkenazy:cpt1@177.6),
 MatchClaim(instant: score:clt1@160.0 <-> perf:Chopin_Ashkenazy:cpt1@178.1),
 MatchClaim(instant: score:clt1@160.2 <-> perf:Chopin_Ashkenazy:cpt1@178.3),
 MatchClaim(instant: score:clt1@160.5 <-> perf:Chopin_Ashkenazy:cpt1@178.6),
 MatchClaim(instant: score:clt1@160.8 <-> perf:Chopin_Ashkenazy:cpt1@178.8),
 MatchClaim(instant: score:clt1@161.0 <-> perf:Chopin_Ashkenazy:cpt1@179.6),
 MatchClaim(instant: score:clt1@161.5 <-> perf:Chopin_Ashkenazy:cpt1@180.4),
 MatchClaim(instant: score:clt1@161.8 <-> perf:Chopin_Ashkenazy:cpt1@180.7),
 MatchClaim(instant: score:clt1@162.0 <-> perf:Chopin_Ashkenazy:cpt1@181.0),
 MatchClaim(instant: score:clt1@162.2 <-> perf:Chopin_Ashkenazy:cpt1@181.2),
 MatchClaim(instant: score:clt1@162.5 <-> perf:Chopin_Ashkenazy:cpt1@181.6),
 MatchClaim(instant: score:clt1@163.0 <-> perf:Chopin_Ashkenazy:cpt1@182.1),
 MatchClaim(instant: score:clt1@163.5 <-> perf:Chopin_Ashkenazy:cpt1@182.7),
 MatchClaim(instant: score:clt1@164.0 <-> perf:Chopin_Ashkenazy:cpt1@183.3),
 MatchClaim(instant: score:clt1@164.2 <-> perf:Chopin_Ashkenazy:cpt1@183.6),
 MatchClaim(instant: score:clt1@164.5 <-> perf:Chopin_Ashkenazy:cpt1@183.9),
 MatchClaim(instant: score:clt1@164.8 <-> perf:Chopin_Ashkenazy:cpt1@184.2),
 MatchClaim(instant: score:clt1@165.0 <-> perf:Chopin_Ashkenazy:cpt1@184.8),
 MatchClaim(instant: score:clt1@165.4 <-> perf:Chopin_Ashkenazy:cpt1@185.6),
 MatchClaim(instant: score:clt1@165.5 <-> perf:Chopin_Ashkenazy:cpt1@185.9),
 MatchClaim(instant: score:clt1@166.0 <-> perf:Chopin_Ashkenazy:cpt1@186.6),
 MatchClaim(instant: score:clt1@166.5 <-> perf:Chopin_Ashkenazy:cpt1@187.1),
 MatchClaim(instant: score:clt1@167.0 <-> perf:Chopin_Ashkenazy:cpt1@187.6),
 MatchClaim(instant: score:clt1@167.5 <-> perf:Chopin_Ashkenazy:cpt1@188.1),
 MatchClaim(instant: score:clt1@168.0 <-> perf:Chopin_Ashkenazy:cpt1@188.6),
 MatchClaim(instant: score:clt1@168.5 <-> perf:Chopin_Ashkenazy:cpt1@189.5),
 MatchClaim(instant: score:clt1@169.0 <-> perf:Chopin_Ashkenazy:cpt1@190.4),
 MatchClaim(instant: score:clt1@169.5 <-> perf:Chopin_Ashkenazy:cpt1@190.8),
 MatchClaim(instant: score:clt1@170.0 <-> perf:Chopin_Ashkenazy:cpt1@191.4),
 MatchClaim(instant: score:clt1@170.2 <-> perf:Chopin_Ashkenazy:cpt1@191.7),
 MatchClaim(instant: score:clt1@170.4 <-> perf:Chopin_Ashkenazy:cpt1@191.8),
 MatchClaim(instant: score:clt1@170.5 <-> perf:Chopin_Ashkenazy:cpt1@191.9),
 MatchClaim(instant: score:clt1@170.6 <-> perf:Chopin_Ashkenazy:cpt1@192.0),
 MatchClaim(instant: score:clt1@170.8 <-> perf:Chopin_Ashkenazy:cpt1@192.3),
 MatchClaim(instant: score:clt1@170.9 <-> perf:Chopin_Ashkenazy:cpt1@192.5),
 MatchClaim(instant: score:clt1@171.0 <-> perf:Chopin_Ashkenazy:cpt1@192.6),
 MatchClaim(instant: score:clt1@171.1 <-> perf:Chopin_Ashkenazy:cpt1@192.9),
 MatchClaim(instant: score:clt1@171.3 <-> perf:Chopin_Ashkenazy:cpt1@193.0),
 MatchClaim(instant: score:clt1@171.5 <-> perf:Chopin_Ashkenazy:cpt1@193.4),
 MatchClaim(instant: score:clt1@172.0 <-> perf:Chopin_Ashkenazy:cpt1@193.9),
 MatchClaim(instant: score:clt1@172.5 <-> perf:Chopin_Ashkenazy:cpt1@194.4),
 MatchClaim(instant: score:clt1@173.0 <-> perf:Chopin_Ashkenazy:cpt1@194.8),
 MatchClaim(instant: score:clt1@173.5 <-> perf:Chopin_Ashkenazy:cpt1@195.2),
 MatchClaim(instant: score:clt1@174.0 <-> perf:Chopin_Ashkenazy:cpt1@195.6),
 MatchClaim(instant: score:clt1@174.5 <-> perf:Chopin_Ashkenazy:cpt1@196.2),
 MatchClaim(instant: score:clt1@175.0 <-> perf:Chopin_Ashkenazy:cpt1@196.8),
 MatchClaim(instant: score:clt1@175.2 <-> perf:Chopin_Ashkenazy:cpt1@197.0),
 MatchClaim(instant: score:clt1@175.5 <-> perf:Chopin_Ashkenazy:cpt1@197.2),
 MatchClaim(instant: score:clt1@175.8 <-> perf:Chopin_Ashkenazy:cpt1@197.4),
 MatchClaim(instant: score:clt1@176.0 <-> perf:Chopin_Ashkenazy:cpt1@197.6),
 MatchClaim(instant: score:clt1@176.2 <-> perf:Chopin_Ashkenazy:cpt1@197.8),
 MatchClaim(instant: score:clt1@176.5 <-> perf:Chopin_Ashkenazy:cpt1@198.0),
 MatchClaim(instant: score:clt1@176.8 <-> perf:Chopin_Ashkenazy:cpt1@198.2),
 MatchClaim(instant: score:clt1@177.0 <-> perf:Chopin_Ashkenazy:cpt1@198.4),
 MatchClaim(instant: score:clt1@177.2 <-> perf:Chopin_Ashkenazy:cpt1@198.8),
 MatchClaim(instant: score:clt1@177.4 <-> perf:Chopin_Ashkenazy:cpt1@198.9),
 MatchClaim(instant: score:clt1@177.5 <-> perf:Chopin_Ashkenazy:cpt1@199.0),
 MatchClaim(instant: score:clt1@178.0 <-> perf:Chopin_Ashkenazy:cpt1@199.6),
 MatchClaim(instant: score:clt1@178.5 <-> perf:Chopin_Ashkenazy:cpt1@200.2),
 MatchClaim(instant: score:clt1@179.0 <-> perf:Chopin_Ashkenazy:cpt1@200.6),
 MatchClaim(instant: score:clt1@179.5 <-> perf:Chopin_Ashkenazy:cpt1@201.0),
 MatchClaim(instant: score:clt1@180.0 <-> perf:Chopin_Ashkenazy:cpt1@201.4),
 MatchClaim(instant: score:clt1@180.5 <-> perf:Chopin_Ashkenazy:cpt1@201.8),
 MatchClaim(instant: score:clt1@181.0 <-> perf:Chopin_Ashkenazy:cpt1@202.1),
 MatchClaim(instant: score:clt1@181.5 <-> perf:Chopin_Ashkenazy:cpt1@202.4),
 MatchClaim(instant: score:clt1@182.0 <-> perf:Chopin_Ashkenazy:cpt1@202.8),
 MatchClaim(instant: score:clt1@182.5 <-> perf:Chopin_Ashkenazy:cpt1@203.2),
 MatchClaim(instant: score:clt1@183.0 <-> perf:Chopin_Ashkenazy:cpt1@203.5),
 MatchClaim(instant: score:clt1@183.5 <-> perf:Chopin_Ashkenazy:cpt1@203.9),
 MatchClaim(instant: score:clt1@184.0 <-> perf:Chopin_Ashkenazy:cpt1@204.4),
 MatchClaim(instant: score:clt1@184.5 <-> perf:Chopin_Ashkenazy:cpt1@204.9),
 MatchClaim(instant: score:clt1@185.0 <-> perf:Chopin_Ashkenazy:cpt1@205.2),
 MatchClaim(instant: score:clt1@185.5 <-> perf:Chopin_Ashkenazy:cpt1@205.7),
 MatchClaim(instant: score:clt1@186.0 <-> perf:Chopin_Ashkenazy:cpt1@206.3),
 MatchClaim(instant: score:clt1@186.5 <-> perf:Chopin_Ashkenazy:cpt1@207.0),
 MatchClaim(instant: score:clt1@186.9 <-> perf:Chopin_Ashkenazy:cpt1@207.5),
 MatchClaim(instant: score:clt1@187.2 <-> perf:Chopin_Ashkenazy:cpt1@207.7),
 MatchClaim(instant: score:clt1@187.6 <-> perf:Chopin_Ashkenazy:cpt1@208.0),
 MatchClaim(instant: score:clt1@188.0 <-> perf:Chopin_Ashkenazy:cpt1@208.1),
 MatchClaim(instant: score:clt1@188.4 <-> perf:Chopin_Ashkenazy:cpt1@208.3),
 MatchClaim(instant: score:clt1@188.8 <-> perf:Chopin_Ashkenazy:cpt1@208.5),
 MatchClaim(instant: score:clt1@189.1 <-> perf:Chopin_Ashkenazy:cpt1@208.8),
 MatchClaim(instant: score:clt1@189.5 <-> perf:Chopin_Ashkenazy:cpt1@209.1),
 MatchClaim(score:clt1@192.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@192.6 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@192.8 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@192.9 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@193.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@193.1 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@193.2 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@193.4 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@193.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@193.6 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@193.8 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@193.9 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@194.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@194.1 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@194.2 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@194.4 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@194.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@194.6 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@194.8 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@194.9 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@195.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@195.1 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@195.2 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@195.4 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@195.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@195.6 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@195.8 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@195.9 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@196.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@196.1 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@196.2 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@196.4 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@196.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@196.6 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@196.8 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@196.9 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@197.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@197.1 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@197.2 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@197.4 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@197.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@197.6 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@197.8 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@197.9 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@198.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@198.1 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@198.2 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@198.4 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@198.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@198.6 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@198.8 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@198.9 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@199.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@199.1 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@199.2 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@199.4 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@199.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@199.6 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@199.8 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@199.9 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@200.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@200.1 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@200.2 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@200.4 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@200.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@201.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@201.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@202.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@202.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@203.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@203.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@204.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@204.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@205.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@205.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@206.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@206.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@208.0 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(score:clt1@209.5 <-> perf:Chopin_Ashkenazy:cpt1 [NOMATCH]),
 MatchClaim(instant: score:clt1@0.5 <-> perf:Chopin_Ashkenazy:cpt1@10.3),
 MatchClaim(instant: score:clt1@6.5 <-> perf:Chopin_Ashkenazy:cpt1@16.2),
 MatchClaim(instant: score:clt1@12.5 <-> perf:Chopin_Ashkenazy:cpt1@21.5),
 MatchClaim(instant: score:clt1@18.5 <-> perf:Chopin_Ashkenazy:cpt1@26.3),
 MatchClaim(instant: score:clt1@24.5 <-> perf:Chopin_Ashkenazy:cpt1@32.7),
 MatchClaim(instant: score:clt1@30.5 <-> perf:Chopin_Ashkenazy:cpt1@38.8),
 MatchClaim(instant: score:clt1@36.5 <-> perf:Chopin_Ashkenazy:cpt1@44.3),
 MatchClaim(instant: score:clt1@42.5 <-> perf:Chopin_Ashkenazy:cpt1@49.6),
 MatchClaim(instant: score:clt1@48.5 <-> perf:Chopin_Ashkenazy:cpt1@56.6),
 MatchClaim(instant: score:clt1@54.5 <-> perf:Chopin_Ashkenazy:cpt1@62.8),
 MatchClaim(instant: score:clt1@60.5 <-> perf:Chopin_Ashkenazy:cpt1@69.4),
 MatchClaim(instant: score:clt1@66.5 <-> perf:Chopin_Ashkenazy:cpt1@74.2),
 MatchClaim(instant: score:clt1@72.5 <-> perf:Chopin_Ashkenazy:cpt1@80.6),
 MatchClaim(instant: score:clt1@78.5 <-> perf:Chopin_Ashkenazy:cpt1@87.6),
 MatchClaim(instant: score:clt1@84.5 <-> perf:Chopin_Ashkenazy:cpt1@93.2),
 MatchClaim(instant: score:clt1@90.5 <-> perf:Chopin_Ashkenazy:cpt1@98.7),
 MatchClaim(instant: score:clt1@96.5 <-> perf:Chopin_Ashkenazy:cpt1@106.4),
 MatchClaim(instant: score:clt1@102.5 <-> perf:Chopin_Ashkenazy:cpt1@111.9),
 MatchClaim(instant: score:clt1@108.5 <-> perf:Chopin_Ashkenazy:cpt1@118.4),
 MatchClaim(instant: score:clt1@114.5 <-> perf:Chopin_Ashkenazy:cpt1@123.4),
 MatchClaim(instant: score:clt1@120.5 <-> perf:Chopin_Ashkenazy:cpt1@130.7),
 MatchClaim(instant: score:clt1@126.5 <-> perf:Chopin_Ashkenazy:cpt1@137.7),
 MatchClaim(instant: score:clt1@132.5 <-> perf:Chopin_Ashkenazy:cpt1@144.4),
 MatchClaim(instant: score:clt1@138.5 <-> perf:Chopin_Ashkenazy:cpt1@150.5),
 MatchClaim(instant: score:clt1@144.5 <-> perf:Chopin_Ashkenazy:cpt1@159.6),
 MatchClaim(instant: score:clt1@150.5 <-> perf:Chopin_Ashkenazy:cpt1@167.2),
 MatchClaim(instant: score:clt1@156.5 <-> perf:Chopin_Ashkenazy:cpt1@174.8),
 MatchClaim(instant: score:clt1@162.5 <-> perf:Chopin_Ashkenazy:cpt1@181.6),
 MatchClaim(instant: score:clt1@168.5 <-> perf:Chopin_Ashkenazy:cpt1@189.5),
 MatchClaim(instant: score:clt1@174.5 <-> perf:Chopin_Ashkenazy:cpt1@196.2),
 MatchClaim(instant: score:clt1@180.5 <-> perf:Chopin_Ashkenazy:cpt1@201.8),
 MatchClaim(instant: score:clt1@186.5 <-> perf:Chopin_Ashkenazy:cpt1@207.0),
 MatchClaim(instant: score:clt1@0.0 <-> perf:Chopin_Ashkenazy:cpt1@9.5),
 MatchClaim(instant: score:clt1@0.5 <-> perf:Chopin_Ashkenazy:cpt1@10.3),
 MatchClaim(instant: score:clt1@1.0 <-> perf:Chopin_Ashkenazy:cpt1@11.1),
 MatchClaim(instant: score:clt1@1.5 <-> perf:Chopin_Ashkenazy:cpt1@11.6),
 MatchClaim(instant: score:clt1@2.0 <-> perf:Chopin_Ashkenazy:cpt1@12.0),
 MatchClaim(instant: score:clt1@2.5 <-> perf:Chopin_Ashkenazy:cpt1@12.4),
 MatchClaim(instant: score:clt1@3.0 <-> perf:Chopin_Ashkenazy:cpt1@12.9),
 MatchClaim(instant: score:clt1@3.5 <-> perf:Chopin_Ashkenazy:cpt1@13.4),
 MatchClaim(instant: score:clt1@4.0 <-> perf:Chopin_Ashkenazy:cpt1@13.9),
 MatchClaim(instant: score:clt1@4.5 <-> perf:Chopin_Ashkenazy:cpt1@14.4),
 MatchClaim(instant: score:clt1@5.0 <-> perf:Chopin_Ashkenazy:cpt1@14.8),
 MatchClaim(instant: score:clt1@5.5 <-> perf:Chopin_Ashkenazy:cpt1@15.2),
 MatchClaim(instant: score:clt1@6.0 <-> perf:Chopin_Ashkenazy:cpt1@15.6),
 MatchClaim(instant: score:clt1@6.5 <-> perf:Chopin_Ashkenazy:cpt1@16.2),
 MatchClaim(instant: score:clt1@7.0 <-> perf:Chopin_Ashkenazy:cpt1@16.6),
 MatchClaim(instant: score:clt1@7.5 <-> perf:Chopin_Ashkenazy:cpt1@17.0),
 MatchClaim(instant: score:clt1@8.0 <-> perf:Chopin_Ashkenazy:cpt1@17.7),
 MatchClaim(instant: score:clt1@8.5 <-> perf:Chopin_Ashkenazy:cpt1@18.1),
 MatchClaim(instant: score:clt1@9.0 <-> perf:Chopin_Ashkenazy:cpt1@18.6),
 MatchClaim(instant: score:clt1@9.5 <-> perf:Chopin_Ashkenazy:cpt1@19.1),
 MatchClaim(instant: score:clt1@10.0 <-> perf:Chopin_Ashkenazy:cpt1@19.5),
 MatchClaim(instant: score:clt1@10.5 <-> perf:Chopin_Ashkenazy:cpt1@19.9),
 MatchClaim(instant: score:clt1@11.0 <-> perf:Chopin_Ashkenazy:cpt1@20.3),
 MatchClaim(instant: score:clt1@11.5 <-> perf:Chopin_Ashkenazy:cpt1@20.6),
 MatchClaim(instant: score:clt1@12.0 <-> perf:Chopin_Ashkenazy:cpt1@21.0),
 MatchClaim(instant: score:clt1@12.5 <-> perf:Chopin_Ashkenazy:cpt1@21.5),
 MatchClaim(instant: score:clt1@13.0 <-> perf:Chopin_Ashkenazy:cpt1@21.8),
 MatchClaim(instant: score:clt1@13.5 <-> perf:Chopin_Ashkenazy:cpt1@22.2),
 MatchClaim(instant: score:clt1@14.0 <-> perf:Chopin_Ashkenazy:cpt1@22.7),
 MatchClaim(instant: score:clt1@14.5 <-> perf:Chopin_Ashkenazy:cpt1@23.0),
 MatchClaim(instant: score:clt1@15.0 <-> perf:Chopin_Ashkenazy:cpt1@23.4),
 MatchClaim(instant: score:clt1@15.5 <-> perf:Chopin_Ashkenazy:cpt1@23.8),
 MatchClaim(instant: score:clt1@16.0 <-> perf:Chopin_Ashkenazy:cpt1@24.2),
 MatchClaim(instant: score:clt1@16.5 <-> perf:Chopin_Ashkenazy:cpt1@24.6),
 MatchClaim(instant: score:clt1@17.0 <-> perf:Chopin_Ashkenazy:cpt1@25.0),
 MatchClaim(instant: score:clt1@17.5 <-> perf:Chopin_Ashkenazy:cpt1@25.4),
 MatchClaim(instant: score:clt1@18.0 <-> perf:Chopin_Ashkenazy:cpt1@25.7),
 MatchClaim(instant: score:clt1@18.5 <-> perf:Chopin_Ashkenazy:cpt1@26.3),
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 MatchClaim(instant: score:clt1@20.0 <-> perf:Chopin_Ashkenazy:cpt1@27.9),
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 MatchClaim(instant: score:clt1@29.5 <-> perf:Chopin_Ashkenazy:cpt1@37.8),
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 MatchClaim(instant: score:clt1@31.5 <-> perf:Chopin_Ashkenazy:cpt1@39.7),
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 MatchClaim(instant: score:clt1@36.5 <-> perf:Chopin_Ashkenazy:cpt1@44.3),
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 MatchClaim(instant: score:clt1@57.5 <-> perf:Chopin_Ashkenazy:cpt1@66.6),
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 MatchClaim(instant: score:clt1@59.5 <-> perf:Chopin_Ashkenazy:cpt1@68.4),
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 MatchClaim(instant: score:clt1@124.5 <-> perf:Chopin_Ashkenazy:cpt1@135.8),
 MatchClaim(instant: score:clt1@125.0 <-> perf:Chopin_Ashkenazy:cpt1@136.3),
 MatchClaim(instant: score:clt1@125.5 <-> perf:Chopin_Ashkenazy:cpt1@136.8),
 MatchClaim(instant: score:clt1@126.0 <-> perf:Chopin_Ashkenazy:cpt1@137.3),
 MatchClaim(instant: score:clt1@126.5 <-> perf:Chopin_Ashkenazy:cpt1@137.7),
 MatchClaim(instant: score:clt1@127.0 <-> perf:Chopin_Ashkenazy:cpt1@138.2),
 MatchClaim(instant: score:clt1@127.5 <-> perf:Chopin_Ashkenazy:cpt1@138.6),
 MatchClaim(instant: score:clt1@128.0 <-> perf:Chopin_Ashkenazy:cpt1@139.0),
 MatchClaim(instant: score:clt1@128.5 <-> perf:Chopin_Ashkenazy:cpt1@139.4),
 MatchClaim(instant: score:clt1@129.0 <-> perf:Chopin_Ashkenazy:cpt1@140.2),
 MatchClaim(instant: score:clt1@129.5 <-> perf:Chopin_Ashkenazy:cpt1@141.1),
 MatchClaim(instant: score:clt1@130.0 <-> perf:Chopin_Ashkenazy:cpt1@141.8),
 MatchClaim(instant: score:clt1@130.5 <-> perf:Chopin_Ashkenazy:cpt1@142.3),
 MatchClaim(instant: score:clt1@131.0 <-> perf:Chopin_Ashkenazy:cpt1@142.8),
 MatchClaim(instant: score:clt1@131.5 <-> perf:Chopin_Ashkenazy:cpt1@143.4),
 MatchClaim(instant: score:clt1@132.0 <-> perf:Chopin_Ashkenazy:cpt1@143.8),
 MatchClaim(instant: score:clt1@132.5 <-> perf:Chopin_Ashkenazy:cpt1@144.4),
 MatchClaim(instant: score:clt1@133.0 <-> perf:Chopin_Ashkenazy:cpt1@144.8),
 MatchClaim(instant: score:clt1@133.5 <-> perf:Chopin_Ashkenazy:cpt1@145.3),
 MatchClaim(instant: score:clt1@134.0 <-> perf:Chopin_Ashkenazy:cpt1@145.9),
 MatchClaim(instant: score:clt1@134.5 <-> perf:Chopin_Ashkenazy:cpt1@146.5),
 MatchClaim(instant: score:clt1@135.0 <-> perf:Chopin_Ashkenazy:cpt1@147.0),
 MatchClaim(instant: score:clt1@135.5 <-> perf:Chopin_Ashkenazy:cpt1@147.5),
 MatchClaim(instant: score:clt1@136.0 <-> perf:Chopin_Ashkenazy:cpt1@148.0),
 MatchClaim(instant: score:clt1@136.5 <-> perf:Chopin_Ashkenazy:cpt1@148.4),
 MatchClaim(instant: score:clt1@137.0 <-> perf:Chopin_Ashkenazy:cpt1@148.9),
 MatchClaim(instant: score:clt1@137.5 <-> perf:Chopin_Ashkenazy:cpt1@149.4),
 MatchClaim(instant: score:clt1@138.0 <-> perf:Chopin_Ashkenazy:cpt1@149.8),
 MatchClaim(instant: score:clt1@138.5 <-> perf:Chopin_Ashkenazy:cpt1@150.5),
 MatchClaim(instant: score:clt1@139.0 <-> perf:Chopin_Ashkenazy:cpt1@151.5),
 MatchClaim(instant: score:clt1@139.5 <-> perf:Chopin_Ashkenazy:cpt1@152.5),
 MatchClaim(instant: score:clt1@140.0 <-> perf:Chopin_Ashkenazy:cpt1@153.2),
 MatchClaim(instant: score:clt1@140.5 <-> perf:Chopin_Ashkenazy:cpt1@153.7),
 MatchClaim(instant: score:clt1@141.0 <-> perf:Chopin_Ashkenazy:cpt1@154.5),
 MatchClaim(instant: score:clt1@141.5 <-> perf:Chopin_Ashkenazy:cpt1@156.2),
 MatchClaim(instant: score:clt1@142.0 <-> perf:Chopin_Ashkenazy:cpt1@156.8),
 MatchClaim(instant: score:clt1@142.5 <-> perf:Chopin_Ashkenazy:cpt1@157.3),
 MatchClaim(instant: score:clt1@143.0 <-> perf:Chopin_Ashkenazy:cpt1@157.7),
 MatchClaim(instant: score:clt1@143.5 <-> perf:Chopin_Ashkenazy:cpt1@158.2),
 MatchClaim(instant: score:clt1@144.0 <-> perf:Chopin_Ashkenazy:cpt1@158.8),
 MatchClaim(instant: score:clt1@144.5 <-> perf:Chopin_Ashkenazy:cpt1@159.6),
 MatchClaim(instant: score:clt1@145.0 <-> perf:Chopin_Ashkenazy:cpt1@160.3),
 MatchClaim(instant: score:clt1@145.5 <-> perf:Chopin_Ashkenazy:cpt1@161.1),
 MatchClaim(instant: score:clt1@146.0 <-> perf:Chopin_Ashkenazy:cpt1@161.8),
 MatchClaim(instant: score:clt1@146.5 <-> perf:Chopin_Ashkenazy:cpt1@162.3),
 MatchClaim(instant: score:clt1@147.0 <-> perf:Chopin_Ashkenazy:cpt1@162.9),
 MatchClaim(instant: score:clt1@147.5 <-> perf:Chopin_Ashkenazy:cpt1@163.6),
 MatchClaim(instant: score:clt1@148.0 <-> perf:Chopin_Ashkenazy:cpt1@164.4),
 MatchClaim(instant: score:clt1@148.5 <-> perf:Chopin_Ashkenazy:cpt1@164.9),
 MatchClaim(instant: score:clt1@149.0 <-> perf:Chopin_Ashkenazy:cpt1@165.3),
 MatchClaim(instant: score:clt1@149.5 <-> perf:Chopin_Ashkenazy:cpt1@165.8),
 MatchClaim(instant: score:clt1@150.0 <-> perf:Chopin_Ashkenazy:cpt1@166.3),
 MatchClaim(instant: score:clt1@150.5 <-> perf:Chopin_Ashkenazy:cpt1@167.2),
 MatchClaim(instant: score:clt1@151.0 <-> perf:Chopin_Ashkenazy:cpt1@167.9),
 MatchClaim(instant: score:clt1@151.5 <-> perf:Chopin_Ashkenazy:cpt1@168.4),
 MatchClaim(instant: score:clt1@152.0 <-> perf:Chopin_Ashkenazy:cpt1@168.9),
 MatchClaim(instant: score:clt1@152.5 <-> perf:Chopin_Ashkenazy:cpt1@169.5),
 MatchClaim(instant: score:clt1@153.0 <-> perf:Chopin_Ashkenazy:cpt1@170.0),
 MatchClaim(instant: score:clt1@153.5 <-> perf:Chopin_Ashkenazy:cpt1@170.6),
 MatchClaim(instant: score:clt1@154.0 <-> perf:Chopin_Ashkenazy:cpt1@171.2),
 MatchClaim(instant: score:clt1@154.5 <-> perf:Chopin_Ashkenazy:cpt1@171.8),
 MatchClaim(instant: score:clt1@155.0 <-> perf:Chopin_Ashkenazy:cpt1@173.0),
 MatchClaim(instant: score:clt1@155.5 <-> perf:Chopin_Ashkenazy:cpt1@173.7),
 MatchClaim(instant: score:clt1@156.0 <-> perf:Chopin_Ashkenazy:cpt1@174.2),
 MatchClaim(instant: score:clt1@156.5 <-> perf:Chopin_Ashkenazy:cpt1@174.8),
 MatchClaim(instant: score:clt1@157.0 <-> perf:Chopin_Ashkenazy:cpt1@175.4),
 MatchClaim(instant: score:clt1@157.5 <-> perf:Chopin_Ashkenazy:cpt1@175.8),
 MatchClaim(instant: score:clt1@158.0 <-> perf:Chopin_Ashkenazy:cpt1@176.3),
 MatchClaim(instant: score:clt1@158.5 <-> perf:Chopin_Ashkenazy:cpt1@176.7),
 MatchClaim(instant: score:clt1@159.0 <-> perf:Chopin_Ashkenazy:cpt1@177.1),
 MatchClaim(instant: score:clt1@159.5 <-> perf:Chopin_Ashkenazy:cpt1@177.6),
 MatchClaim(instant: score:clt1@160.0 <-> perf:Chopin_Ashkenazy:cpt1@178.1),
 MatchClaim(instant: score:clt1@160.5 <-> perf:Chopin_Ashkenazy:cpt1@178.6),
 MatchClaim(instant: score:clt1@161.0 <-> perf:Chopin_Ashkenazy:cpt1@179.6),
 MatchClaim(instant: score:clt1@161.5 <-> perf:Chopin_Ashkenazy:cpt1@180.4),
 MatchClaim(instant: score:clt1@162.0 <-> perf:Chopin_Ashkenazy:cpt1@181.0),
 MatchClaim(instant: score:clt1@162.5 <-> perf:Chopin_Ashkenazy:cpt1@181.6),
 MatchClaim(instant: score:clt1@163.0 <-> perf:Chopin_Ashkenazy:cpt1@182.1),
 MatchClaim(instant: score:clt1@163.5 <-> perf:Chopin_Ashkenazy:cpt1@182.7),
 MatchClaim(instant: score:clt1@164.0 <-> perf:Chopin_Ashkenazy:cpt1@183.3),
 MatchClaim(instant: score:clt1@164.5 <-> perf:Chopin_Ashkenazy:cpt1@183.9),
 MatchClaim(instant: score:clt1@165.0 <-> perf:Chopin_Ashkenazy:cpt1@184.8),
 MatchClaim(instant: score:clt1@165.5 <-> perf:Chopin_Ashkenazy:cpt1@185.9),
 MatchClaim(instant: score:clt1@166.0 <-> perf:Chopin_Ashkenazy:cpt1@186.6),
 MatchClaim(instant: score:clt1@166.5 <-> perf:Chopin_Ashkenazy:cpt1@187.1),
 MatchClaim(instant: score:clt1@167.0 <-> perf:Chopin_Ashkenazy:cpt1@187.6),
 MatchClaim(instant: score:clt1@167.5 <-> perf:Chopin_Ashkenazy:cpt1@188.1),
 MatchClaim(instant: score:clt1@168.0 <-> perf:Chopin_Ashkenazy:cpt1@188.6),
 MatchClaim(instant: score:clt1@168.5 <-> perf:Chopin_Ashkenazy:cpt1@189.5),
 MatchClaim(instant: score:clt1@169.0 <-> perf:Chopin_Ashkenazy:cpt1@190.4),
 MatchClaim(instant: score:clt1@169.5 <-> perf:Chopin_Ashkenazy:cpt1@190.8),
 MatchClaim(instant: score:clt1@170.0 <-> perf:Chopin_Ashkenazy:cpt1@191.4),
 MatchClaim(instant: score:clt1@170.5 <-> perf:Chopin_Ashkenazy:cpt1@191.9),
 MatchClaim(instant: score:clt1@171.0 <-> perf:Chopin_Ashkenazy:cpt1@192.6),
 MatchClaim(instant: score:clt1@171.5 <-> perf:Chopin_Ashkenazy:cpt1@193.4),
 MatchClaim(instant: score:clt1@172.0 <-> perf:Chopin_Ashkenazy:cpt1@193.9),
 MatchClaim(instant: score:clt1@172.5 <-> perf:Chopin_Ashkenazy:cpt1@194.4),
 MatchClaim(instant: score:clt1@173.0 <-> perf:Chopin_Ashkenazy:cpt1@194.8),
 MatchClaim(instant: score:clt1@173.5 <-> perf:Chopin_Ashkenazy:cpt1@195.2),
 MatchClaim(instant: score:clt1@174.0 <-> perf:Chopin_Ashkenazy:cpt1@195.6),
 MatchClaim(instant: score:clt1@174.5 <-> perf:Chopin_Ashkenazy:cpt1@196.2),
 MatchClaim(instant: score:clt1@175.0 <-> perf:Chopin_Ashkenazy:cpt1@196.8),
 MatchClaim(instant: score:clt1@175.5 <-> perf:Chopin_Ashkenazy:cpt1@197.2),
 MatchClaim(instant: score:clt1@176.0 <-> perf:Chopin_Ashkenazy:cpt1@197.6),
 MatchClaim(instant: score:clt1@176.5 <-> perf:Chopin_Ashkenazy:cpt1@198.0),
 MatchClaim(instant: score:clt1@177.0 <-> perf:Chopin_Ashkenazy:cpt1@198.4),
 MatchClaim(instant: score:clt1@177.5 <-> perf:Chopin_Ashkenazy:cpt1@199.0),
 MatchClaim(instant: score:clt1@178.0 <-> perf:Chopin_Ashkenazy:cpt1@199.6),
 MatchClaim(instant: score:clt1@178.5 <-> perf:Chopin_Ashkenazy:cpt1@200.2),
 MatchClaim(instant: score:clt1@179.0 <-> perf:Chopin_Ashkenazy:cpt1@200.6),
 MatchClaim(instant: score:clt1@179.5 <-> perf:Chopin_Ashkenazy:cpt1@201.0),
 MatchClaim(instant: score:clt1@180.0 <-> perf:Chopin_Ashkenazy:cpt1@201.4),
 MatchClaim(instant: score:clt1@180.5 <-> perf:Chopin_Ashkenazy:cpt1@201.8),
 MatchClaim(instant: score:clt1@181.0 <-> perf:Chopin_Ashkenazy:cpt1@202.1),
 MatchClaim(instant: score:clt1@181.5 <-> perf:Chopin_Ashkenazy:cpt1@202.4),
 MatchClaim(instant: score:clt1@182.0 <-> perf:Chopin_Ashkenazy:cpt1@202.8),
 MatchClaim(instant: score:clt1@182.5 <-> perf:Chopin_Ashkenazy:cpt1@203.2),
 MatchClaim(instant: score:clt1@183.0 <-> perf:Chopin_Ashkenazy:cpt1@203.5),
 MatchClaim(instant: score:clt1@183.5 <-> perf:Chopin_Ashkenazy:cpt1@203.9),
 MatchClaim(instant: score:clt1@184.0 <-> perf:Chopin_Ashkenazy:cpt1@204.4),
 MatchClaim(instant: score:clt1@184.5 <-> perf:Chopin_Ashkenazy:cpt1@204.9),
 MatchClaim(instant: score:clt1@185.0 <-> perf:Chopin_Ashkenazy:cpt1@205.2),
 MatchClaim(instant: score:clt1@185.5 <-> perf:Chopin_Ashkenazy:cpt1@205.7),
 MatchClaim(instant: score:clt1@186.0 <-> perf:Chopin_Ashkenazy:cpt1@206.3),
 MatchClaim(instant: score:clt1@186.5 <-> perf:Chopin_Ashkenazy:cpt1@207.0),
 MatchClaim(instant: score:clt1@188.0 <-> perf:Chopin_Ashkenazy:cpt1@208.1),
 MatchClaim(instant: score:clt1@189.5 <-> perf:Chopin_Ashkenazy:cpt1@209.1),
 MatchClaim(instant: score:clt1@0.0 <-> perf:Chopin_Barenboim:cpt1@0.3),
 MatchClaim(instant: score:clt1@0.5 <-> perf:Chopin_Barenboim:cpt1@1.2),
 MatchClaim(instant: score:clt1@1.0 <-> perf:Chopin_Barenboim:cpt1@1.9),
 MatchClaim(instant: score:clt1@1.5 <-> perf:Chopin_Barenboim:cpt1@2.4),
 MatchClaim(instant: score:clt1@2.0 <-> perf:Chopin_Barenboim:cpt1@2.9),
 MatchClaim(instant: score:clt1@2.5 <-> perf:Chopin_Barenboim:cpt1@3.4),
 MatchClaim(instant: score:clt1@3.0 <-> perf:Chopin_Barenboim:cpt1@4.0),
 MatchClaim(instant: score:clt1@3.5 <-> perf:Chopin_Barenboim:cpt1@4.6),
 MatchClaim(instant: score:clt1@4.0 <-> perf:Chopin_Barenboim:cpt1@5.2),
 MatchClaim(instant: score:clt1@4.5 <-> perf:Chopin_Barenboim:cpt1@5.6),
 MatchClaim(instant: score:clt1@5.0 <-> perf:Chopin_Barenboim:cpt1@6.2),
 MatchClaim(instant: score:clt1@5.5 <-> perf:Chopin_Barenboim:cpt1@6.7),
 MatchClaim(instant: score:clt1@6.0 <-> perf:Chopin_Barenboim:cpt1@7.2),
 MatchClaim(instant: score:clt1@6.5 <-> perf:Chopin_Barenboim:cpt1@7.8),
 MatchClaim(instant: score:clt1@7.0 <-> perf:Chopin_Barenboim:cpt1@8.3),
 MatchClaim(instant: score:clt1@7.5 <-> perf:Chopin_Barenboim:cpt1@8.8),
 MatchClaim(instant: score:clt1@8.0 <-> perf:Chopin_Barenboim:cpt1@9.5),
 MatchClaim(instant: score:clt1@8.5 <-> perf:Chopin_Barenboim:cpt1@10.0),
 MatchClaim(instant: score:clt1@9.0 <-> perf:Chopin_Barenboim:cpt1@10.5),
 MatchClaim(instant: score:clt1@9.5 <-> perf:Chopin_Barenboim:cpt1@11.2),
 MatchClaim(instant: score:clt1@10.0 <-> perf:Chopin_Barenboim:cpt1@11.7),
 MatchClaim(instant: score:clt1@10.5 <-> perf:Chopin_Barenboim:cpt1@12.2),
 MatchClaim(instant: score:clt1@11.0 <-> perf:Chopin_Barenboim:cpt1@12.8),
 MatchClaim(instant: score:clt1@11.5 <-> perf:Chopin_Barenboim:cpt1@13.3),
 MatchClaim(instant: score:clt1@12.0 <-> perf:Chopin_Barenboim:cpt1@13.8),
 MatchClaim(instant: score:clt1@12.5 <-> perf:Chopin_Barenboim:cpt1@14.3),
 MatchClaim(instant: score:clt1@13.0 <-> perf:Chopin_Barenboim:cpt1@14.8),
 MatchClaim(instant: score:clt1@13.5 <-> perf:Chopin_Barenboim:cpt1@15.3),
 MatchClaim(instant: score:clt1@14.0 <-> perf:Chopin_Barenboim:cpt1@15.9),
 MatchClaim(instant: score:clt1@14.5 <-> perf:Chopin_Barenboim:cpt1@16.5),
 MatchClaim(instant: score:clt1@15.0 <-> perf:Chopin_Barenboim:cpt1@17.0),
 MatchClaim(instant: score:clt1@15.5 <-> perf:Chopin_Barenboim:cpt1@17.6),
 MatchClaim(instant: score:clt1@16.0 <-> perf:Chopin_Barenboim:cpt1@18.1),
 ...]
ashkenazy_claims = [c for c in bundle.cross_group_claims if c.connects(ashkenazy.id)]
by_granularity = Counter(c.metadata.agent.identifier for c in ashkenazy_claims)
dict(by_granularity)
{'note': 559, 'bar': 32, 'beats': 376}

At the note level, not every score note is found in the recording: where the aligner located no onset, the row is recorded as a rather than discarded, so the dangling score position is preserved. Splitting the note-level claims into located and makes the distinction explicit:

note_claims = [c for c in ashkenazy_claims if c.metadata.agent.identifier == "note"]

{
    "note claims (total)": len(note_claims),
    "located (synchronous)": sum(1 for c in note_claims if c.is_synchronous),
    "NOMATCH (no onset found)": sum(1 for c in note_claims if not c.is_synchronous),
}
{'note claims (total)': 559,
 'located (synchronous)': 480,
 'NOMATCH (no onset found)': 79}

A single bar-level claim links a score quarter to a performed second. This one anchors the downbeat of the first full measure (quarter 0.5) to the moment Ashkenazy played it:

ashkenazy_bar_claims = [
    c for c in ashkenazy_claims if c.metadata.agent.identifier == "bar"
]
ashkenazy_bar_claims[0]
MatchClaim synchronous, instant
Timeline A score:clt1 @0.5
Timeline B perf:Chopin_Ashkenazy:cpt1 @10.272
Metadata agent=performance_precision
Try: claim.get_matchstamp()

6. Comparing the performances

The corpus exists to compare how performers shape the same music in time. The answers this directly: given one score coordinate, get_matchstamp_at returns the corresponding coordinate on every connected timeline. A at the first full downbeat is therefore one score quarter mapped to seven performed seconds:

downbeat = float(metrical_position_map.quarters_at(2))
stamp = bundle.get_matchstamp_at(downbeat, score_tl.id)
stamp
MatchStamp 8 timelines, 7 edges
ID Coordinate Type
perf:Chopin_Ashkenazy:cpt1 10.272 anchor
perf:Chopin_Freire:cpt1 1.536 anchor
perf:Chopin_Barenboim:cpt1 1.2 anchor
perf:Chopin_Rubinstein:cpt1 1.168 anchor
score:clt1 0.5 anchor
perf:Chopin_Pollini:cpt1 1.952 anchor
perf:Chopin_Horowitz:cpt1 0.96 anchor
perf:Chopin_Rachmaninoff:cpt1 5.728 anchor
Try: stamp.get(<tl_id>), stamp.get_coordinate(<tl_id>)

Reading that across a sequence of downbeats gives each performer’s arrival time at each measure — the raw material of a tempo comparison. We take the first several measure downbeats, ask the bundle for each performer’s onset there, and tabulate the seconds against the score quarters:

downbeat_mcs = range(2, 10)
rows = []
for mc in downbeat_mcs:
    quarters = float(metrical_position_map.quarters_at(mc))
    onset_stamp = bundle.get_matchstamp_at(quarters, score_tl.id)
    row = {"score (quarters)": quarters}
    for key in performer_keys:
        perf_id = loader.create_timeline(uid=key).id
        coord = onset_stamp.coordinates.get(perf_id)
        row[key.replace("Chopin_", "")] = (
            round(float(coord), 3) if coord is not None else None
        )
    rows.append(row)

tempo_table = pd.DataFrame(rows).set_index("score (quarters)")
tempo_table
Ashkenazy Barenboim Freire Horowitz Pollini Rachmaninoff Rubinstein
score (quarters)
0.5 10.272 1.200 1.536 0.960 1.952 5.728 1.168
6.5 16.152 7.792 8.384 7.232 8.352 13.072 7.696
12.5 21.456 14.304 15.040 14.208 14.848 20.208 14.752
18.5 26.320 21.248 21.408 20.704 20.384 27.520 21.888
24.5 32.672 29.248 28.542 28.352 27.232 35.824 30.032
30.5 38.784 35.920 34.614 35.024 33.664 42.848 36.896
36.5 44.320 42.688 40.998 42.112 40.432 51.696 43.952
42.5 49.600 49.504 47.920 48.976 46.464 60.208 51.344

Each column is one pianist’s arrival times in seconds; each row is a shared score position. The gaps between successive rows within a column are the inter-downbeat durations — read down a column and the performer’s local tempo is visible, read across a row and the performers’ differing placements of the same beat stand side by side. The same procedure at the beat or note granularity yields a finer-grained timing profile, all from the one .