Addons for sounds synthesis

sorry for asking ,is there any existing addons can generated music notes? i.e the piano notes

I just started playing with ofxMaxim there are a few tutorials online and example code on github. I’m not sure if it has a midi to frequency conversion built in but you can write a function. Here is a guide scroll down to the bottom for code example.
Here is the youtube ofxMaxim tutorials.
Also there are a few other options. I still use supercollider but for quick ios game sound effects or something I would probably use the built in addon. Cheers!

hey,thxs for the help! i found there’s an addons called ofxstk which seems another option,anyway, thxs for the tutorials links