Greetings chipmusic lovers and Commodore fans (and most definitely Atari fans, per the nature of this forum... Atari is my next retro love after my C=) - I've got a new full length album available for download (free, in MP3 and FLAC).
There's a lot of music, do investigate and enjoy.
Brief descriptions are tricky, but if I had to call it anything, I'd say it's modern, advanced electronica boiled down to 2x 3-channel SID chips. I normally use my retro gear (modded C64's, modded Atari 2600, Gameboy) supplementally in my modern studio setup, but this was conceived purely on Commodore hardware without any modern sequencing or synths.
http://betamod.com/releases/beta057-overthink-gcs/