Playback is mainly controlled by the following Transport Controls, found in the main toolbar.
Arms the project for recording.
If stopped, the song will start playing. If already playing, the Playhead will move to the Cue point.
Pauses playback. If clicked twice, goes back to the Cue point.
Moves the Playhead backward by the size of 1 snap point.
Moves the Playhead forward by the size of 1 snap point.
If enabled, the Playhead will move back to the Loop Start point when it reaches the Loop End point.