superboucle
Loop based software with jack transport, record and midi controllable
...You can adjust duration of sample (loop period) in beat and offset in beat. But you can also adjust sample offset in raw frame count negative or positive. Which mean sample can start before next beat (useful for reversed sample). You can record loop of any size, adjust BPM, reverse, normalize samples, ...
Typical usage :
* You need to control jack transport with external midi device and want a button to jump to a specified location in song