You can add a new track for a prerecorded Apple Loop by clicking the loop in the Loop Browser and dragging it to the Timeline below the bottom track.
To delete a track, select the track header and choose Track > Delete Track or press Cmd-Delete.
To delete a region within a track, select the region and press Delete.
The Time Display shows either musical time or actual time. It also shows the current playhead position.
Mute silences an individual track.
Solo silences all other tracks.
To record a Software Instrument, you can create a new Software Instrument track or use an existing Software Instrument track. You also need to make sure the track's Record Enable button is turned on.
With GarageBand 2, you can record one Software Instrument track and up to eight Real Instrument tracks at the same time.
The onscreen keyboard that comes with GarageBand is a MIDI interface that can be used to record Software Instruments.
The onscreen keyboard works with the selected Software Instrument track.
You can drag the expansion triangle in the lower-right edge of the keyboard window to change the size of the keys and the length of the keyboard.
To quickly change which range of notes the keys play, you can use the keyboard overview.
You can change a track icon in the Track Info window.
You can change the location of saved songs. The default location is the GarageBand folder inside the Music folder on your computer.
You can change the instrument of any Software Instrument track in the Track Info window.
There can be only one GarageBand project open at a time.