The Logic Off Topic list

Hendrik Jan Veenstra wrote:
>And it's 'Kerouac' BTW.
>:-)

  I can't believe I mis-spelled his name!! Well, I wrote it a hundred times
on the blackboard so it will never happen again:))

> A combination of regular (non-sysex) and sysex midi messages should
> be able to accomplish _anything_ on your synth.
>

  After twiddling with this all day I think I can finally explain what I'm
trying to do. Presets on my keyboard are made up of two samples (pri.
instrument and sec. instrument). So say I have an organ sound called
Procol's Harem, when I look in the preset info the pri. instrument may be
hard perc. organ and the sec. instrument may be soft pipe organ (just an
example). This is what I want to change. With SYSEX I'm trying to make it
possible to alter the pri. and sec. samples on the fly in Logic to create
new sounds.
  So I came to the conclusion (I wouldn't really call it that, more like a
guess) that what I should be doing is altering that particular program. What
I mean is that If I have Procol's Harem on channel 4, I shouldn't access
channel 4 I should acces the Procol's Harem program (preset), right? Because
all I'm doing with channel 4 is accessing the Procol's Harem program, right?
  So how do I do this? I'm using my keyboard in multi-timbral mode. Can I
set up a set of faders that does 1: access the program I want to tweak 2:
set up the correct SYSEX Faders or SYSEX Maps to tweak those parameters ( I
already have the knowledge how to do this) 3; Have this be independent so
that when I tweak the first group of faders for the pri. instrument faders
it won't interfere with any of the other programs I have faders set up for?
  I'm trying to think of it as creating a new instrument where not only can
you choose which channel and program you want to play, but also tweak
individual parameters for that specific program.
  Am I way out on Mars here? Is this even remotely possible? It's almost
perfect now except that I want the SYSEX message I'm sending to be specific
to a choosen program (preset). And to be able to do this with several
programs that are on different channels at the same time.
  Am I starting to drive everybody crazy with all this or what?
    --Thanks
       Roger