Note: If you have never downloaded GarageBand before, you may need to briefly sign into your Apple ID on a newer Mac running Big Sur or later, "get" the app there, and then return to your Catalina Mac to find it in your purchase history. Helpful Feature: Virtual Session "Drummer"
If the App Store says your Mac isn't compatible: Garageband For Catalina 10.15.7 -FREE- Download
Older versions of GarageBand sometimes struggle to download the extended instrument packs from Apple's servers. If your download stalls: Note: If you have never downloaded GarageBand before,