That's a beautiful idea—think of each arc as a crescendo, the release a gentle decrescendo. Start by mapping the velocity of the throw to the dynamics of a piece, then play with the tempo so the rhythm matches the launch. You could even layer a soft pad underneath to accent the transition from motion to sound. Let's experiment and see how the motion shapes the harmony.

I love a brisk piano trio from Mozart for that precise snare feel, a pulsing Stravinsky rhythm for the dynamic arc, and a modern electronic beat like “Midnight Drive” that lets the boomerang bounce right into the groove. Try layering a snare hit at the release point and let the tempo carry the whole motion.