11 ms·Agree NES is a good place to start. C64 SID is not FM at all, but agree it's not easy to learn.by ilkke 2y agoAgree NES is a good place to start. C64 SID is not FM at all, but agree it's not easy to learn.snowram 2y agoSID chip does have some FM components to it, for exemple ring modulation or LPF/HPF. This is what makes the learning curve pretty high for it.mrob 2y agoRing modulation is a form of amplitude modulation, not frequency modulation. Filters are not modulation at all.