Then i added second lfo with led and ldr for pitch modulation. The best part was "starve" pot ->just a 10k pot in series with battery + to ic pin 14. Some really crazy sounds can be made with playing with this pot. Here is a schematic of the oscs and lfos
The component values are what i happened to have so try different values for the results you like. Add more buttons, switches etc. for more playability (only 1 button in the schematic for output) for example i did a powercut button (normally closed) with cap in parallel (47 uF)
here is a picture of the finished piece.