CoCoSID is a program I wrote for the Tandy CoCo 3 that more-or-less mimic the sound of the Commodore 64 SID sound chip. The music used here is a hand-converted version of the original C64 Commando by Rob Hubbard. The DSK can be found here to play on emulation or real CoCo 3: http://www.coco3.com/community/wp-content/uploads/2010/02/REMDISK_cocosid.zip
My homepage: http://sites.google.com/site/rveilleux/coco3home