Don't know what that means in the context that you may mean it. Do you mean that if you record at 120 bpm and want to import a part recorded at 108 bpm you want the software to automatically sense that and do it for you? Does anything do that? I have used the time stretch several times when tracks sent to me did not line up right and needed to be fixed 2 bpm one way or the other, but pretty much isn't 120 bpm 120 bpm with anything getting it's clock from MIDI?