Polyphonic Wave-folding/shaping Synthesizer with 4 modes
Simple waves are scaled by the envelope then sent through a shaping function, resulting in a dynamically evolving timbre.

Controls:
1 – attack
2 – decay/release
3 – sustain
4 – shaping amount

Aux – Switch between 4 Modes

1 – Sine – Sine wave into sine function (wavefolding)
2 – Tanh – Sine wave into tanh function (square / saturation)
3 – Saw>Sine resonant sync (Based on Casio CZ, see https://en.wikipedia.org/w/index.php?title=Phase_distortion_synthesis )
4 – Static Cosine – #1 but envelope effects volume instead of folding.

Some modes are more prone to aliasing, you can try to increase the sample rate for better sound quality.
Note: currently only tested with desktop mother patch.