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by pierrec
1647 days ago
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There are already tools that can estimate the variation of tempo over time (rubato). Librosa's "tempo" function does the job well for some types of music - it can even give you a 3D/heatmap plot with the likelihood of every tempo value at every moment: https://librosa.org/doc/main/generated/librosa.beat.tempo.ht... Rubato is everywhere in classical music, and understanding rubato is an essential part of any automatic transcription system that aims to show you notes in musically meaningful units of time. |
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