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Re: midi/score difference?

Date1998-03-18 19:29
Fromrasmus ekman
SubjectRe: midi/score difference?
Ken Locarnini wrote:
> 
>   Can someone explain what the control difference between midi and score is?
> Someone objected that there is not a fine enough degree of control, 
> but I don't understand.

Midi events (controllers, velocity, aftertouch etc) use only 127 values. 
This is good enough for many controlling tasks, but if you like to work
with direct values (say, controlling pitch), it doesn't quite cut it.
Csound score parameters can use very precise decimal numbers, so you
could
eg specify different tunings right in the score. You could certainly get
around most problems by designing your instruments accordingly (and also 
by using the 14/21-bit inputs with Csound), so this is probably mostly a 
question of style and taste in sound programming.

One problem with Midi which may be harder to get around is the maximum
density of events: You can have any number of csound score events per
second, but at most, er, er, 320 microseconds per serial byte times
three
bytes for most messages = *theoretical* maximum density is 1040 3-byte 
events per second (these include Note-on/offs, controllers and
aftertouch).
Correct me if I'm wrong (probably am, this is just by a casual glance in 
the v 1.0 spec).

Again, this would be a problem only for certain composition techniques.
But it quickly (prematurely) turned me away from the Atari + dual TX81 
setup in the Sthlm Electr. studio some years ago.


Regards,

	re