Impostor wrote: ↑Sun Feb 25, 2024 9:00 amHydrogen has a "randomize velocity" option, and, also a "lead and lag" per-note control window where you can do some grooving. I don't see the point of the velocity randomization option as you can easily vary that yourself, but the lead-and-lag control is a very handy feature to have.
MusE has a "humanize" script where you can randomize velocity and timing.
I think ardour has it too. I am not too sure as i neither fully understand the thread nor those ardour options.
At least two things i know about:
1) in grab mode select a region, right click, in the opened menu choose name-of-track, the scroll down to "MIDI", then select Transform (there is several, not only velocity)
2) in internal edid mode, select the notes, righ click, either quantize or again "Transform" (quantize has swing too).
Though best is really to ask ardour (as said above: i don't fully understand).