Like other commenters said, I would just choose a single chip and limit yourself to that. That's pretty constrained by today's standards (arguably, even all of

Like other commenters said, I would just choose a single chip and limit yourself to that. That's pretty constrained by today's standards (arguably, even all of furnace tracker is rather limited compared to your typical modern DAW) - but still plenty to make great music. Which chipset? Maybe you can listen to tracks made with any of these and see which you like best (if you search for the chip name you'll probably find examples on youtube). Good ones are Gameboy (hugely popular thanks to gameboy-native software like LSDJ and nanoloop), YMF2612 (the Sega Genesis chip, primarily FM-based, so can be pretty modern), YMF262/OPL3(also FM, ubiquitous in old PCs), NES (very barebones, more so than gameboy), SID (the commodore chip, which was pretty ahead of its time in terms of sonic capabilities, has a cult following).