: Open the app from your Applications folder. You may be prompted to download "Essential Content" (several GBs of sounds). Ensure you have a stable internet connection for this. 2. Hardware Setup
If you are running on an Apple Silicon Mac (M1, M2, M3), you must force it to run via Rosetta 2: MainStage-3.6.4.dmg
: On the first launch, MainStage will prompt you to download the essential Sound Library (minimum ~6 GB). 2. System Requirements : Open the app from your Applications folder