Tip 7: What's that momentary switch for again? -
>I'm messin' with my MS-20 and decided to bite the bullet and try and figure out what the hell the button on the left hand side does (the little black one next to the mod wheel).
>I know it's assignable and I know it puts out something in the range of +3 or so, and it's probably a trigger of some sort but I have no idea what *use* this is.
"Well, what I've done with it was that I had some drum sounds coming through the ESP, but the trigger [g=359]threshold[/g] level was kinda iffy. It'd trigger one of the envelopes, but barely. It'd play along just kinda peeping around for a while, then I'd have the (momentary switch) trigger out patched into the second envelope, to fully trigger it (usually at a certain point in the song). That's what I did with (the switch) anyway."
An interesting use for it I've found, is to trigger EG-1 to control [g=208]VCA[/g]-2, and dynamically introduce pitch and/or [g=43]filter[/g] modulation, governed by a noise source. Good for those underwater or space sequences in your next Discovery [g=190]Channel[/g]/Apollo 8 documentary soundtrack. Here's the patching:
[g=210]VCO[/g] 1 & 2: off (zero on the mixer)
[g=210]VCO[/g] Frequency Modulation: both zero
VCHPF Cutoff Frequency: 0
VCHPF [g=357]Peak[/g]: 0
VCHPF Cutoff Frequency Modulation: both zero
VCLPF Cutoff Frequency: 4
VCLPF [g=357]Peak[/g]: 9
VCHPF Cutoff Frequency Modulation - MG/T.EXT: 8
EG-1 Delay Time: 2
EG-1 Attack Time: 7
EG-1 Release Time: 5
EG-2 Decay Time: 3
EG-2 Sustain Level: 5+
EG-2 Release Time: 4+
(Other controls are irrelevant.)
[g=7]Patch[/g] Panel:
Momentary Switch to EG-1 Trig In
EG-1 Out to [g=208]VCA[/g]-2 Control Input
[g=202]Pink Noise[/g] to [g=208]VCA[/g]-2 In
[g=208]VCA[/g]-2 Out to Total In
Play a note, then push on the button. The [g=43]filter[/g] modulation will fade in, and then fade out when you let go of the button (adapt this to modulate the [g=210]VCO[/g](s) in the same way.)
Add SpaceVerb TM, and Bob's your funny Uncle.
There's a million other uses for that little switch, this being two of them -
". . switching the lights in your room on and off, and of course launching a nuclear missile. This would however convert your Korg MS-20 into a piece of military equipment, so watch out how you handle it."