This i made on the iEvent server it uses projectilefiring and redirects and set music pictures...

A player who just activated the system. The tubes are where the projectiles go they are redirected and play the loops

Once you accept the prompt on the buttons it will fire a projectile every time it hits the play brick it restarts the song making a loop.
Like it?
My text is confusing :/ so...
Basically, inside those those tube things are radio waves bouncing in them, every time they bounce it plays the first chord of a default song, depending on what tube it is in.