When I was in college, I spent hundreds of hours using ReBirth, a music-making app that emulated two Roland 303 bassline synths, an 808 drum machine, and a 909 drum machine. Rebirth also had a number of effects and filters included. Unfortunately, support for ReBirth died many years ago. It doesn't even run on macOS. If you were lucky enough to buy an iPad version a few years ago, you can still use that, but it's no longer supported since Roland threatened to sue them so they took it off the store.
I got nostalgic today so I sat down and recorded something in that old ReBirth style.