Basic Editing: Trim, Split, and Move Regions
The handful of editing moves — trimming, splitting, moving, and looping regions — that you'll use in nearly every project you ever make.
Every recording you make lands on the timeline as a region — a block of audio or MIDI sitting on a track. This lesson covers the basic moves for reshaping those blocks, which apply the same way whether you're editing a vocal take or a bassline.
Selecting a region
Click once on a region to select it — it'll highlight, usually with a brighter border or fill. Most editing actions only work on whatever's currently selected, so this is the move you'll make before almost everything else.
Moving a region
Click and drag the middle of a region to slide it earlier or later in time, or onto a different track entirely. GarageBand will usually snap it to the nearest beat or bar automatically, which is helpful for keeping things aligned — you can override this "snap to grid" behavior in the control bar if you need finer, freeform placement.
Trimming a region
Hover near the very start or end of a region and your cursor changes to a resize handle. Drag inward from either edge to shorten the region — this doesn't delete anything permanently, it just changes what part of the recording plays. Drag back out later and (for audio, up to the original recording's length) the trimmed material is still there.
Splitting a region
Position the playhead where you want to cut, select the region, and use Edit > Split (or its keyboard shortcut, usually Command-T). This slices one region into two independent pieces, which you can then move, delete, or trim separately. Splitting is how you isolate a bad section in the middle of an otherwise good take.
Looping a region
Small Software Instrument or Apple Loop regions often show a little curl icon in their top-right corner when selected. Drag that corner to the right and the region repeats itself — useful for stretching a one-bar drum loop or chord pattern across a whole verse without recording it multiple times.
Deleting a region
Select it and press Delete/Backspace. If you delete the wrong thing, Command-Z (Undo) works exactly like you'd expect and can typically step back through several actions, not just the last one.
A quick workflow habit
Zoom in before you make precise edits — using the zoom control near the horizontal scroll bar, or a trackpad pinch gesture over the timeline. Trying to trim a region to the exact beat while zoomed all the way out is how tiny timing errors sneak into a project.
What's next
With editing basics in place, the next lesson introduces Apple Loops — a fast way to build out a full arrangement using GarageBand's built-in sound library, no recording required.
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