I used to use a plug-in similar in appearance to Genny called YM2612 (free on kvraudio). My main issue with it is that it is not compatible with sample rates above 44.1kHz. I'm not sure if Genny has this issue. I also grabbed RYM2612 because with the free VGM player RYMCast, it is possible to port instruments from VGM into RYM2612. Matter of fact, this cover contains modified Shinobi instruments, while my cover of Better Off Alone (by Alice Deejay) is primarily modified Sonic 3 Ice Cap instruments. Also got RYM2612 for the legacy filter and ladder effect options, as well as the ability to bitcrush audio via audio routing (route your drum sample track to RYM2612 for DAC). It even has a DAC prescaler for custom compression amount. BTW if you ever wanna use Deflemask, RYMCast can output instruments for it. Again, drag and drop.