The only 8-bit anything I was exposed to as a kid was the NES (although I did watch Atari 2600 gameplay for a 15 minutes at most, but I barely remember anything about that).
Just recently, I downloaded Deflemask, a tracker that can emulate several different chipsets. One of those is the Commodore 64. Despite only having 3 channels to work with, musicians have made awesome music for the Commodore 64, and you can expect me to do the same in the future. I fell in love with its audio almost instantly upon watching videos of the stuff on YouTube.
By the way, if anyone knows of a means of making Atari POKEY chip music on a Windows machine, please do not hesitate to tell me.