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MIDI file playback support in macOS was removed in the 64-bit only transition in Catalina (since it relied on legacy QuickTime). If you opt to install Apple Gar
by kalleboo 6y ago
MIDI file playback support in macOS was removed in the 64-bit only transition in Catalina (since it relied on legacy QuickTime). If you opt to install Apple Garageband (free, preinstalled on new Macs I think) then that can play (and edit) them.
The OS still has a software synth and a high-level API for playing them, there's just no bundled app to interface with it.