Dumb MIDI question

[J. Larry Hendry]

> From: WeAreAs1 at aol.com
> The old Roland MKS-80 Super Jupiter had an optional programmer unit, the 
> MPG-80, which allowed you to edit your patches with knobs and sliders. 
The 
> MPG-80 transmitted all of your moves to the MKS-80 via sysex.  You could
hook 
> up as many as sixteen MKS-80 modules to one MPG-80, and by setting each
one 
> to a different Unit ID, you could easily route the programmer data to the
one 
> you wanted, simply by changing the transmitted Unit ID at the programmer
(it 
> had a 16-position rotary switch for this). 

I am relatively certain that the MPG-80 programmer 16 position switch
changes only the midi channel byte.  So, yes you could chain 16 MKS-80s
together with one programmer.  However, each MKS-80 would be set to a
different MIDI channel.  The MPG-80 would pass all 16 channels at once
(from its MIDI in) to the string of MKS-80s, so you could edit each one in
real time and switch editing from one to the other with the MPG-80 channel
selector switch.

Larry Hendry