http://battleofthebits.org/arena/Battle … PC+Echoes/
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if yr interested in taking part, read the lyceum article to get started! you can write music with this http://openmpt.org/ and convert to a snes file with this: http://snes.mukunda.com/snesmodlite_july09.zip
all samples are allowed 
but if you'd like to use anything from classic snes videogames feel free to give some of these a go: http://www.williamkage.com/snes_soundfonts/
best of luck~!