Woah, this is definitely the most unique and creative use of limitation we've seen.
The implementation is genuinely impressive and, aesthetically, it's a BEAUTIFUL play. The predictive trails are a really lovely touch.
One thing I would love to see if you really make this into a full game is locking onto stable orbits while aiming. I found it tricky to get it just right and actually build up loops of sound (but I eventually got it and it was AWESOME!)
Overall, this is such a special and well done project.