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Table 1 Semitone change distribution, when using the reassigned spectrum, where frequency shift is expressed in terms of semitones

From: Reassigned spectrum-based feature extraction for GMM-based automatic chord recognition

Frequency shift Energy reassignments (%)
−3 0.14
−2 0.43
−1 4.28
0 90.23
1 4.33
2 0.37
3 0.19