Comment 5 for bug 1645054

John Doe -- do agree that the patch you posted is the equivalent of:

new_bpm *= closest_beat / (closest_beat +/- audio_samples_per_pixel)

As I understand it, this does not meet your criteria since you said:

"I want the same result when I adjust the beatgrid no matter where the playposition is in the track when I adjust the beatgrid."

If I understand correctly, you would want a formula that depends purely on audio_samples_per_pixel, not on closest-beat (since that scales depending on how far into a track you are).

This formula also is BPM dependent, since it increases the BPM by a percentage, whereas the code at head adjusts the BPM by a fixed offset (0.1). Is that desirable also?

I'm still unsure that we want to be tying adjustments to the zoom level. Is this need met by introducing a coarse/fine adjust like we have for the rate slider?