The new 0415 Guitar Synth is done and PCB's are now avaliable in the shop! :)
A verified vero layout added to the bottom of this post.
This is a simple but fun pedal that transforms the signal into a square wave, up to five octaves apart: one or two octaves up can be mixed with one or two octaves down for super synthy sounds.
What makes this special is that the octave up part is based on a frequency controlled oscillator so it doesn't scramble chords like usual octave circuit and it tracks well over the entire fretboard. Compared to the Arcadiator it sounds less like a fuzz and more like a pure synth. It can be very controlled, but also make superglitchy sounds.
This circuit is basically a light version of a upcoming pedal that will be called "into the Unknown Guitar Synthesizer". It's based around the same chips, but it will be a monster with 8 pots and 3 switches... More about that one later.