Roland 808303.studio - TR-808 drum machine and TB-303 bass synthesizer emulator
drumbit - A very easy to use drum machine.
Mubert - Craft high-quality content using next-gen royalty-free music powered by AI.
Type Drummer - Drum by typing
Axiom - Axiom is a general purpose Computer Algebra system.
Sampulator - Make (and record) beats on your keyboard