[sdiy] Newbie is here

[artyone at slingshot.co.nz]

Howdy Folks,
            I'm Sean Kerrigan,41,and I live in Auckland New Zealand and 
have recently got the bug of building analogue synths and I've spent the 
last coupla weeks searching out DIY sites and tutorials about synths.I've 
been into electronics for about 3.5 years,from scratch,and stuck mainly to 
valve amps and guitar effects.My most recent project was a mixer with about 
20 odd IC's in it for which I designed all my own PCB's from schematics 
found here and there.I've designed my own valve amps from scratch,using 
curves and stuff,but thats as far as I go with actual electronic design but 
my strength really is in the actual hardware side of things with 
fabrication and suchlike...so thats a basic rundown,Oh,except for the fact 
I like to build weird musical instruments using old piano 
strings,piezo's,home wound pickups and kitchen aluminium along the lines of 
zithers and guitarish lines.
 So on my searches for tutorials I have yet to find anything about the 
actual stuff that goes on between the keys and the CV,gate and trigger 
inputs.I've been looking at Midi2CV using PIC's.and know a guy at the local 
shop who can help me there at programming the PIC's,but I'd still like to 
know more about the actuall arrangements under the keys.I've got an old 
farfisa organ lying about and was thinking that might be adapted to CV 
control?,though the electronics seem to be RC type stuff of a slightly more 
modern type than an old 60's Gulbransen organ I have lying about.So any 
tutorial sites or schematics that show the basics of key selection etc 
would be most helpful.
  Also my only actual synth to date is a Juno 106 with a bad voice and I 
was talking to a guy,Fran Muir,a few months back who had said it would be 
easy enough to build a discrete DCO/VCF and the idea has grown on me.I 
tried to get hold of him recently but found out he'd passed away,which was 
kind of a bummer,so I'm wondering if anybody out there might be able to 
help me with a schematic.
  And though most of your discussion goes in one ear and out the other 
without touching the sidea...thats what it was like on the tube amp forums 
3 years ago...hopefully it won't take that long this time...and thanks for 
having me.Cheers