Cmpsr®Anyone Can Instantly Be a Musician CMPSR (kom poh zah) is an award winning, disability friendly joystick controller paired with Swipe, our accessible music app (available on iOS, Android, and Web). Think of it like a piano, but simpler: Connect the CMPSR joystick to the Swipe app. Play, compose, and explore with a single push, swipe, tap, or eye blink. Let Arrownotes, our colour coded notation system, guide learners of all abilities through melodies,