Sonic the Hedgehog CD concept music

One of the Sonic CD prototypes came with some files called SNCBNK*.BIN which weren't used in the game. By altering the ISO, I was able to make the game play them instead of the Past musics, and I've encoded the MP3s below. These tracks do not loop (they just play for a few seconds and then stop until you have to restart the stage) and some of them are very different than the final music, so we're probably dealing with the music that was used when the audio tracks weren't finished yet, in a very early version.

Palmtree Panic Present
Palmtree Panic Good Future
Palmtree Panic Bad Future
Collision Chaos Present
Collision Chaos Good Future
Collision Chaos Bad Future
Tidal Tempest Present
Tidal Tempest Good Future
Tidal Tempest Bad future
Quartz Quadrant Present
Quartz Quadrant Good Future
Quartz Quadrant Bad Future
Wacky Workbench Present
Wacky Workbench Good Future
Wacky Workbench Bad Future
Stardust Speedway Present
Stardust Speedway Good Future
Stardust Speedway Bad Future
Metallic Madness Present
Metallic Madness Good Future
Metallic Madness Bad Future
Boss 1
Boss 2