FM Synthesis Libraries

I'm thinking about using a realtime FM synth for music and sound effects in my next game. I'd write a library myself, but I don't want to waste my time if there's already something good out there. The thing is, google turned up no results. Am I going to have to get cracking on my own?

Gut a Mega Drive emulator. The YM2612 is the finest musical instrument known to mankind^[1][2][3].

^{References:            
1.: Toshiharu Yamanishi, Thunder Force IV (1992)
2.: Yuzo Koshiro, Bare Knuckle 3 (1994)
3.: Michael Jackson, Sonic The Hedgehog 3 (1994)}