Chipsune is a GameBoy (color) Music sequencer for the GBA. Why you may ask? Because GBA was limited to what it could do for GameBoy music sequencers. You would have to use an old cartridge, and those don’t work on GBA Micro, and NDS/NDS Lite. Now, you can use this on those handhelds, and If you Line-In record, there is a lot less static (compared to older versions of the GBA and even GB/GBC).
Chipsune can be downloaded here. All updates will also be posted here :)
http://www.facebook.com/pages/Chipsune/124212437700974