If you "bought" or downloaded GarageBand 6.x in the past, it may still appear in your
If you're on a newer Mac, the current version of GarageBand is free and includes a massive library of sounds, though it lacks some of the "retro" features found in the 6.0.5 build. I have Garage Band 6.0.5 - Apple Support Community Garageband 6.0.5 Download
Can You Download an Older Version of GarageBand? (2024 Update) If you "bought" or downloaded GarageBand 6