In the Death Worm Desert thread, we discovered that Death Worm doesn't have any original music. That means we could either write an original song for it, or remix some fitting music from another indie game.
This has led me to look over the different stages on the roster and try to figure out which still need music selections:
Knytt Garden (Knytt Stories)- I don't know if KS music could be remixed to work well in a fighting game. But I'd love to see someone prove me wrong!
Samorost- Like KS, Samorost's music is probably too subtle and ambient.
Omega Darn (Noitu Love 2)- It's done!
Sun Temple (Aquaria)- It's done (or at least in the process of being finished)!
Death Worm Desert (Death Worm)- Death Worm has no original music.
Asia (Clean Asia)- We'd need to get permission from the original musician, but Clean Asia's music will work very well, I think.
Mondo Medicals- I don't remember any music.
Rescue the Beagles- Again, we'd need permission, but RtB had some good tunes.
Regurgitation Pumping Station (World of Goo)- We still need to get permission for WoG, but it had pretty good music that I think would work well (we'd want one of the more frantic/epic tunes).
Bonesaw Stage- It's done!
Pathspace (Immortal Defense)- ID had pretty good music, if I recall correctly. I don't remember enough of it to know whether or not it would fit Indie Brawl, however.
Crayon Physics Stage- The music from Crayon Physics is probably too relaxing and peaceful for a fighting game (like the music from KS and Samorost).
The Tower (Mighty Jill Off)- I don't remember being impressed with MJO's music, for some reason.
I Wanna Be the Guy- I believe the music was ripped. So we'd need something else.
Bird Statue (Untitled Story)- I didn't find An Untitled Story's music to be all that memorable, although there's probably something that could work.
Outer Wall (Cave Story)- Lots of good options for Cave Story music... assuming we get permission.
Rooftops (Iji)- I believe it was decided that we would use a Robotaki's remix, although I suppose we could make our own remix if we had time (read: it's a low priority). We still need the musician's permission.
Among the Leaves (Seiklus)- Seiklus had some good music that could work for this game, although it isn't original, so we'd need permission from the original artists.
If we decide to use remixes of music from other games, here are a few that I remember had pretty good music:
Barkley, Shut Up and Jam: Gaiden, Lyle in Cube Sector (although its not original, so we'd need the original artist's permission), Magi, Nikujin, Spelunky, The Spirit Engine 2, plenty more that I've either forgotten forgotten or never played
I'm not the most musically talented individual, so I need to hear what direction others think we should take.