You're inside a glass sphere. Outside it float sound creatures, each humming, ticking or singing its own loop.
Grab one and bring it in: it starts playing. Where you leave it changes how it plays: closer is busier, higher is brighter, side to side shifts its character, all live as you move it. Throw it and it drifts. Take it out and it goes quiet.
Grab the world with both hands to shrink or spin it. Drones hold the key, melodies play over them, percussion sets the pulse.