A 4-operator FM synth, modulated by 4 different sources through a 4×4 matrix.

Modulator 1: Oscilator (Sine, Saw, Square, Triangle)
Modulator 2: Flexi Sampler (you need to have transport running in order to modulate the operators with the sample)
Modulator 3: Sampler
Modulator 4: Wavetable Oscillator