[feature request] ability to fast-forward/ rewind (jog/shuttle)

[bjmuld]

as a musician, I often want to hear a certain passage again (and again). I would like to do this without re-starting the track from the beginning and without having to use the mouse to imprecisely drag the play-head indiactor around.

A hotkey to go backward by 5 sec. would be great. Similarly, one to skip ahead by 5 sec. (or a similar span of time)