Larry, you have it correct. There is no retriggering of the EG as long as
a key is held down (legato playing style). Moog and most Roland synths use
this mode. The other term for this sort of thing is "single trigger" vs.
"multiple trigger". Most ARPs implemented multiple trigger and the 2600
allowed you to switch between the two, at least on the later 2600s AFAIK.
I actually find single trigger mode more musically useful than multiple
trigger, but I think that's from using it for so many years. A classic
Rick Wakeman Minimoog patch is to set up the EG (er, "Contour Generator")
on the filter with a longish decay and lots of resonance (I mean, Emphasis
in Minimoog-speak) and wail away with a legato style. The filter sweeps
over the notes that are played legato and retriggers when you lift up from
the keyboard.
Eric
At 06:39 PM 12/8/99 -0600, J. Larry Hendry wrote:
>From: "J. Larry Hendry" <jlarryh@...>
>
>I have been thinking about this (a dangerous thing). I do not see how full
>ADSR with gate only could work very well. I say this because I see that
>gate stays high as long as ANY key is depressed. It would seem to me that
>envelopes would not be re-triggered with a gate only ADSR unless the
>playing technique provided that one key contact was indeed open prior to a
>second one being closed.
>
>OTOH, I can see how this could be used as a style technique -- that the
>retrigger on the envelope could be deliberately avoided or hit upon by
>going in and out of a Legato playing style.
>