Thanks for replying.
There are tons of alternatives out there, sometimes you don’t know these exist (that’s why forums are great I suppose)
So, surprisingly I understand a bit of what you did.
I see the structure complex vco, lpg,wavefolder, mixer, dsp.
I was looking at disting as it seems very useful to have a precision adder when playing with FM (it does also things I don’t quite get, but that’s the pleasure of exploring). So I am happy to know that I was looking in the right place for that.

Just a couple of questions:
Do I need another vco to modulate the two59 and for FM?
What’s on duty as LFO/random generator Would it be the maths?

Thanks again
F
EDIT: the multiplier was meant to be used to send the clock to multiple modules, not sue now I need it(maybe it is still useful to have one)?