A music thread I see? (dreamcaster's eyes glisten with joy).
But restricted only to the SNES?
Oh, well, there's enough there!
Here we go (in no particular order...):
Top Gear 3000 - damn cool futuristic tunes.
Super Metroid - Most atmospheric and dark music ever!
Super Mario All-Stars - hearing those classic SNES tunes in multi-channel, hi-quality stereo sound was just heaven! Still is!
Nigel Mansell's World C'ship Racing - There's not much variety, but that tune that plays while you're racing is excellent!
Starwing/StarFox - Excellent theatrical and dramatic music. Especially the end theme!
Stunt Race FX - catchy and funky music throughout. Plus the end credits theme is just bliss!
PilotWings - Soothing and flowing tunes. Best heard through stereo speakers.
There's more (Super R-Type, Top Gear 2) plus some more I can't think of right now...