Making a circuit, based on a circuit being completed when the pick touches the string seems like an excellent way to trigger an effect event.
 Ie a wire, connected to a conductive guitar pick, contacting a ground point [string] and initiating an effect event.
 Any ideas how to cause an adjustable duration 'dip' [transient attenuation] if signal, envelope filter or wah effect that could use this triggering method? ..or another effect type that would lend itself to this triggering method?
 Seems like it would be a pretty reliable, easy way to detect not attacks, though it couldn;t resopnd to dynamecs [yet, or probably in any normal way].
 On a side note, I have CA3080's , usused. And A Ross Compressor.
 How could I wire a momentary switch to cause an effect event like wah, or even some type of ramped note attenuation...I have some LDR's but they start at around 259k and go up to over a meg resistance, havrn't found a home for them...

Pete,
I don't think EVERYTHING has been done before, but Morley used to market a pedal - I don't recall the name - that functioned exactly as you describe. I imagine they didn't sell all that well because of what a pain it would be to run a wire from the box along your guitar cord to your pick.
FWIW.

...But A pain I could live with.
 Besides, I'm having Q work up a 'transmitter pick'...lol

I think there was something called the Pik O Wah (sp?) that had a wired metal pik for triggering. Too bad Kate Ebneter doesn't post here, as I'm sure she would know.

Kerry M

morley made a couple of pick-controlled devices. you can check out the schematics at:

http://www.morleypedals.com/downloads2.html

the pik-a-wah and the pik percussion.
interesting stuff.

In addition to the old Morley devices, there's a currently made gizmo called something like the Chikipick. I recall seeing a website about a year ago showcasing it's abilities.

Thanks for the link, Clay.  I had visited the site a while back and scored a bunch of schems but they've added a lot more since my last visit.

it would be awsome to have a pressure sensitive pick-control, that way, it'd only turn on once you press and then pick with it, just my two cents.

Check out the 4007/4047 circuit in the clock section, then look at the ADA flanger, then look at Craig Anderton's AMS 100 Flanger in Device on Mark Hammer's site - designed by the same guy?

All you really need is a line from the pick, that goes back to a V/R setup on the vol pot, to attenuate more when the pick is providing ground to that part of the circuit, but I think being related directly to the signal path like this could have clicking issues.
 There are wha and stuff that only need a V/R to sweep, hence the question: what a good way, or how hard is it to get something that sweeps from 0K to around 50k-100k dependant on ground being lifted/conected?
 Answer: a 50k resistor, but there wouldn't be much sweep with just that.