BPM estimation from onset or onsetfeatures

Hi,

In the following thread: rate-of-output-values-of-fluid-onsetfeature, @tremblap suggested that I could share the patch I was working on for BPM estimation. So here is the patch together with a typical piano track I want to deal with BPM.zip (6.7 MB)

Any help on how to improve the robustness or the efficiency of the approach would be more than welcome!

Thanks in advance

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