I took a picture of the board to make sure we are talking about the same thing. It would be nice if I could get them to 0V as I was hoping to use it also for level control (through Voltage Controled Amplifier). I wonder if simply placing another diode in series with first one could drop the voltage down (?).
Regarding the use of this: I have several ideas I would like to try, one of them is to hook it up to Mr Rossum's Assimilator (it actually even has 24 CV inputs). But that is just an example. In a way, sound or music develops through time in the same way as light scenes.
I stumbled upon this desk rather by accident, liked the look of it and was thinking "What could I do with it". I have to say it is very nicely designed and built. Plus the fact that I can find people giving me tips on its maker's website forum after all those years is amazing. Thank you!