Surreal interactive road turning into sheet music in Three.js

my first Opus 5.5 vibecoded Three.js 3D experience. My God, Opus is creative. I made a road that forgets which way is down. It folds 90° up a yellow wall, runs upside down across the ceiling, then turns into sheet music. Steer through the notes and each street plays its own melody. Watercolour. Ink. A radio on the roof. Just vibes, code, and a very confused road.