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GarageBand

Transpose notes down a semitone

OptionDown arrow

Mac Desktop app GarageBand for Mac

Practice this

GarageBand uses Option + Down arrow for transpose notes down a semitone. It is listed for the Mac.

Where it works: Piano roll or score editor

Where this comes from

Keyboard shortcuts in GarageBand on Mac - Apple Support

Documentation checked on 2026-09-14. That is a documentation review, not a test run inside the application.

More GarageBand shortcuts

Show or hide the tempo track Shift + Cmd + T
Show or hide the arrangement track Shift + Cmd + A
Create a new project Cmd + N
Open a project Cmd + O
Save the project Cmd + S
Save the project under a new name Shift + Cmd + S
Close the project Cmd + W
Quit GarageBand Cmd + Q

See every GarageBand shortcut

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