SnesMusic

http://itunes.apple.com/us/app/snesmusic/id363451148?mt=8

Support : croissantprod@gmail.com

SnesMusic is a music application, it plays rsn files (spc compilation in a rar archive)

you can find RSN files here http://pantyland.free.fr/ or http://www.snesmusic.org/v2/ or http://ocremix.org/games/

To add files into app you have to use Itunes files sharing http://support.apple.com/kb/ht4094

or you can download files with safari on your iphone but http://www.snesmusic.org/v2/ seem to have a bug with safari

For support on it : croissantprod@gmail.com