Apple GarageBand '09 - Manual (Page 13)

Chapter 2 GarageBand at a Glance 13
A Beat ruler: Shows the units of time (either beats and measures or minutes and seconds) in the
timeline. You can click the beat ruler to move the playhead to any point in the timeline.
B Tracks: You record and arrange your music in the tracks in the timeline. You can add tracks and
change the instrument and effects for each track.
C Master track: You can use the automation curves in the master track to add a fade-in or
fade-out, change the tempo, or transpose parts of the project to a different key.
D Playhead: Shows the point in the project that is currently playing, or where playback starts
when you click the Play button. You can move the playhead to change what part of the project is
playing. Cut and copied items are pasted at the playhead position.
E Arrange track: You can add arrange regions to the arrange track to define different sections of a
project (such as intro, verse, and chorus), then copy and move the arrange regions to quickly
rearrange your project.
F Grid button: Choose a note value for the timeline grid, or choose Automatic to have the value
change when you zoom in or out.
G Regions: Your recordings and the loops you add to your project appear as regions in the
timeline. You can copy and paste regions, loop and resize them, move and transpose them, and
make other changes to build the arrangement of your music.
H Automation curve: Add automation curves for volume, pan, and other parameters to a track,
including the master track, then add and adjust control points on each curve to automate
mixing and other parameters.
I Playhead Lock button: Click to unlock the playheads in the timeline and the editor, so that they
can show different parts of the project.