Just uploaded an updated version
* Added arpeggiator (could use a couple more features but it's working pretty well)
* Added high pass filter
* protect LPF from divide by zero
* added pre-subtract, pre-divide, clamp above and below, and constant to math node
* made it so noise node takes volume from input (so you can apply envelopes)
* added a "WaveToFrequency" node
* made node connection splines look better when going to the left