Sonic The Hedgehog 3 Special Stage [blue spheres] (oscilloscope view)
Chips used in the song: YM2612 (FM synth with 6 channels), Sega PSG (Programmable Sound Generator with 4 voices)
Light blue: Main melody
Blue: Backing melody
A little bit dark blue: Backing melody
Dark blue: Another Backing melody
Green: Drums (PCM)
Red: Bassline
Orange: cord
Yellow: root note of cord
White: noise
I made this because no one else made it yet (except for deconstruction)