Running out of space: move the MainStage Sound Library

The MainStage Sound Library is by far the biggest thing to move. Your concerts and Patches are tiny in comparison, so moving them won't free up much. Keep your Sunday Keys concert on your internal drive for easy access.

To move the Sound Library: choose MainStage > Sound Library > Relocate Sound Library, and pick your external drive. Keep that drive connected whenever you use MainStage.

Other ways to free up space:

• In the Sound Library Manager, remove categories you don't use, keeping the ones Sunday Keys needs. See Install Sunday Keys and download the required MainStage sounds.
• Move other large files, like photos and videos, to an external drive or cloud storage.

Keep the Sunday Keys samples themselves (in Music > Audio Music Apps > Sampler Instruments) on your internal drive. If MainStage can't find them, see Installer failed or instruments missing.