Would love FM synthesis in app – Grain Science Review

Great app. The only thing I would love to see is an option for FM synthesis as a blend mode, in addition to AM and PMW. This would enable a ton of possibilities if you could modulate grain unit 1 with the frequency of grain unit 2. You could probably use the existing octave, tune, and blend amount knobs for the modulation. You would just need to add the engine. Or you could add a knob or two next to blend mode selector when you select FM mode. Just a thought, but I think it would add even more musical possibilities! Thank you for the great synth.
Review by MartineLizardo on Grain Science.