Evaluating Music Context Preservation

01

Harmony

Measures how well harmonic content (chroma profiles, key, chords) is preserved after pitch-shifting edits.

+7 Semitone Transposition

Original

Edited

Harmony	Chroma DTW Similarity	0.7376
	Chroma Similarity	0.9378
	Circle-of-fifths (CoF) Distance	0.1667
Rhythm & Meter	Beat F-measure	0.9654
	Information Gain	0.7028
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.5771
Structure	Adjusted Rand Index (ARI)	0.3865
Melody	Contour DTW Similarity	0.7902
Melody	Motif n-gram Recall	0.6735

Original

Edited

Harmony	Chroma DTW Similarity	0.7810
	Chroma Similarity	0.9176
	Circle-of-fifths (CoF) Distance	0.1667
Rhythm & Meter	Beat F-measure	0.9624
	Information Gain	0.7777
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.8880
Structure	Adjusted Rand Index (ARI)	0.6822
Melody	Contour DTW Similarity	0.7920
Melody	Motif n-gram Recall	0.5466

−3 Semitone Transposition

Original

Edited

Harmony	Chroma DTW Similarity	0.6495
	Chroma Similarity	0.7582
	Circle-of-fifths (CoF) Distance	0.5000
Rhythm & Meter	Beat F-measure	0.9943
	Information Gain	0.7626
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.5446
Structure	Adjusted Rand Index (ARI)	0.2789
Melody	Contour DTW Similarity	0.7527
Melody	Motif n-gram Recall	0.6000

Original

Edited

Harmony	Chroma DTW Similarity	0.7563
	Chroma Similarity	0.8542
	Circle-of-fifths (CoF) Distance	0.5000
Rhythm & Meter	Beat F-measure	1.0000
	Information Gain	0.9123
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.6511
Structure	Adjusted Rand Index (ARI)	0.3537
Melody	Contour DTW Similarity	0.7580
Melody	Motif n-gram Recall	0.6272

02

Melody

Evaluates how melodic contour and motif structure are maintained after pitch-contour inversions.

Climax Inversion

Original

Edited

Harmony	Chroma DTW Similarity	0.9920
	Chroma Similarity	0.9996
	Circle-of-fifths (CoF) Distance	0.0000
Rhythm & Meter	Beat F-measure	0.9877
	Information Gain	0.9218
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.8732
Structure	Adjusted Rand Index (ARI)	0.6166
Melody	Contour DTW Similarity	0.9798
Melody	Motif n-gram Recall	0.9819

Original

Edited

Harmony	Chroma DTW Similarity	0.9944
	Chroma Similarity	0.9999
	Circle-of-fifths (CoF) Distance	0.0000
Rhythm & Meter	Beat F-measure	0.9917
	Information Gain	0.9626
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.9464
Structure	Adjusted Rand Index (ARI)	0.8904
Melody	Contour DTW Similarity	0.9895
Melody	Motif n-gram Recall	0.9286

Full Inversion

Original

Edited

Harmony	Chroma DTW Similarity	0.7598
	Chroma Similarity	0.9798
	Circle-of-fifths (CoF) Distance	0.3333
Rhythm & Meter	Beat F-measure	0.9096
	Information Gain	0.6850
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.4917
Structure	Adjusted Rand Index (ARI)	0.3815
Melody	Contour DTW Similarity	0.6016
Melody	Motif n-gram Recall	0.7114

Original

Edited

Harmony	Chroma DTW Similarity	0.9865
	Chroma Similarity	0.9987
	Circle-of-fifths (CoF) Distance	0.0000
Rhythm & Meter	Beat F-measure	1.0000
	Information Gain	0.7585
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.7430
Structure	Adjusted Rand Index (ARI)	0.4812
Melody	Contour DTW Similarity	0.8340
Melody	Motif n-gram Recall	0.5083

03

Rhythm & Meter

Assesses whether beat timing, tempo, and metric structure are preserved through temporal edits.

Beat Offset −150 ms

Original

Edited

Harmony	Chroma DTW Similarity	0.9904
	Chroma Similarity	0.9997
	Circle-of-fifths (CoF) Distance	0.0000
Rhythm & Meter	Beat F-measure	0.0000
	Information Gain	0.7056
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.8732
Structure	Adjusted Rand Index (ARI)	0.6166
Melody	Contour DTW Similarity	0.7871
Melody	Motif n-gram Recall	0.6606

Original

Edited

Harmony	Chroma DTW Similarity	0.9902
	Chroma Similarity	0.9996
	Circle-of-fifths (CoF) Distance	0.0000
Rhythm & Meter	Beat F-measure	0.0000
	Information Gain	0.6949
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.8851
Structure	Adjusted Rand Index (ARI)	0.8269
Melody	Contour DTW Similarity	0.7885
Melody	Motif n-gram Recall	0.6053

Tempo +50 BPM

Original

Edited

Harmony	Chroma DTW Similarity	0.7895
	Chroma Similarity	0.9965
	Circle-of-fifths (CoF) Distance	0.0000
Rhythm & Meter	Beat F-measure	0.2147
	Information Gain	0.2001
	Δ BPM	33.4961
Structure	Structural Pairwise F-measure	0.5965
Structure	Adjusted Rand Index (ARI)	0.1836
Melody	Contour DTW Similarity	0.6681
Melody	Motif n-gram Recall	0.6183

Original

Edited

Harmony	Chroma DTW Similarity	0.8042
	Chroma Similarity	0.9954
	Circle-of-fifths (CoF) Distance	0.0000
Rhythm & Meter	Beat F-measure	0.3569
	Information Gain	0.0805
	Δ BPM	41.0156
Structure	Structural Pairwise F-measure	0.4933
Structure	Adjusted Rand Index (ARI)	0.0964
Melody	Contour DTW Similarity	0.6875
Melody	Motif n-gram Recall	0.5556

04

Structure

Checks whether large-scale form (section boundaries, repetition patterns) is maintained after structural rearrangement.

AAA (Repeat First Section)

Original

Edited

Harmony	Chroma DTW Similarity	0.9655
	Chroma Similarity	0.9983
	Circle-of-fifths (CoF) Distance	0.0000
Rhythm & Meter	Beat F-measure	0.3295
	Information Gain	0.5236
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.5763
Structure	Adjusted Rand Index (ARI)	0.1060
Melody	Contour DTW Similarity	0.7447
Melody	Motif n-gram Recall	0.6426

Original

Edited

Harmony	Chroma DTW Similarity	0.7988
	Chroma Similarity	0.9802
	Circle-of-fifths (CoF) Distance	0.1667
Rhythm & Meter	Beat F-measure	0.5621
	Information Gain	0.2755
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.5461
Structure	Adjusted Rand Index (ARI)	0.2131
Melody	Contour DTW Similarity	0.7867
Melody	Motif n-gram Recall	0.5897

ABA (Recapitulation)

Original

Edited

Harmony	Chroma DTW Similarity	0.9535
	Chroma Similarity	0.9990
	Circle-of-fifths (CoF) Distance	0.1667
Rhythm & Meter	Beat F-measure	0.7798
	Information Gain	0.5297
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.5753
Structure	Adjusted Rand Index (ARI)	0.3084
Melody	Contour DTW Similarity	0.8329
Melody	Motif n-gram Recall	0.7080

Original

Edited

Harmony	Chroma DTW Similarity	0.9532
	Chroma Similarity	0.9985
	Circle-of-fifths (CoF) Distance	0.1667
Rhythm & Meter	Beat F-measure	0.6992
	Information Gain	0.5342
	Δ BPM	0.0000
Structure	Structural Pairwise F-measure	0.5508
Structure	Adjusted Rand Index (ARI)	0.3607
Melody	Contour DTW Similarity	0.8340
Melody	Motif n-gram Recall	0.7069