[herbert]

Here is the explanation!

The metronome track is monophonic (not polyphonic). The percussive sound of each metronome note has a specific decay to produce a natural sound. If the bpm setting is to high, the metronome notes cut each other off, giving the impression of irregularity and partial loss of volume.

Blane’s file comes at a tempo of 100 bpm. If the tempo is reduced to say 60 bpm, the metronome sounds ok. Permitting the metronome track to operate polyphonically, would be the proper solution.

Herbert