SNES classic Pilotwings had a pretty good soundtrack, and it sounds better now it's been remixed.
Pilotwings: Take Flight is a seven track project from OCRemix-ers halc and group Insert Rupee, available for free download now.
We'd recommend it on the strength of its track names alone — You Don't Talk About Flight Club and The Birdman Cometh, for instance — but halc's "9-bit" audio stylings are worth the price of admission. Which is, of course, free.
You can download Pilotwings: Take Flight now. It's free.