GarageBand - Music Composition

View all the tutorials on the Apple site.
http://www.apple.com/ilife/tutorials/#garageband


Basics in Editing:

Select a Region: Click it in the timeline.
Copy A Region: Option-drag a region to create a copy
RETURN KEY – return to the start of the song
SPACEBAR KEY– toggles between Play/Stop

Resizing Regions
You can resize regions either by shortening them (1) or by duplicating/lengthening (2).
1. Move the pointer over the LOWER right half of either edge of the region. The pointer changes to a repeat pointer (a vertical line with an arrow pointing away from the region). Drag the edge of the region to shorten it or lengthen it.
2. Move the pointer over the UPPER right half of the region. The pointer changes to a circle-pointer. Drag the edge of the region to lengthen it.