Apple Soundtrack Pro 2 - Manual (Page 131)

Chapter 5 Working in the Timeline 131
To begin forward playback at normal (1x) speed:
m Press L.
To begin reverse playback at normal (1x) speed:
m Press J.
To pause playback:
m Press K.
To double the current playback speed:
m Press L or J again.
You can play back up to eight times normal speed, switching from 1x to 2x to 4x to 8x
normal speed (pressing either key a total of four times).
Pressing the key for playback in the opposite direction halves the playback speed,
slowing down playback in that direction until it reaches 1x playback. Playback then
begins doubling in reverse, starting from 1x.
To immediately reverse the playback direction:
m Press K to pause, then press the key for the direction you want.
To move the playhead one frame at a time:
m Hold down the K key, then press J or L.
To move the playhead at below 1/2x speed:
Hold down the K key, then press and hold down J or L.
Moving the Playhead with Keyboard Shortcuts
Soundtrack Pro provides a variety of keyboard shortcuts to move the playhead.
To move the playhead to the previous edit:
m Press the Up Arrow key.
To move the playhead to the next edit:
m Press the Down Arrow key.
To move the playhead to the previous edit and toggle the clip selection:
m Press Shift–Up Arrow.
To move the playhead to the next edit and toggle the clip selection:
m Press Shift–Down Arrow.
To move the playhead one gridline to the left:
m Press the Left Arrow key.
To move the playhead one gridline to the right:
m Press the Right Arrow key.