[sdiy] MIDI inc/dec program

[Tom Wiltshire]

Ok, thanks everyone. It looks like I can't do it without using a  
program number. I've tried CCs 96 &97 and I can't make them change  
the program.

T.


On 28 Jul 2009, at 22:19, Jason Proctor wrote:

> oh right. i wonder if you sent a program change, then increment,  
> some synths might bump the program number.
>
> at a guess, probably not.
>
>
>> Well, strictly speaking CCs 96 & 97 are Data Increment/Decrement,  
>> but it might control program selection in some synths?
>> Normally the parameter affected is first set with a RPN or NRPN  
>> mesage (see CCs 98-101)
>>
>> Some further reading:
>> http://www.blitter.com/~russtopia/MIDI/~jglatt/tech/midispec.htm
>> http://www.midi.org/techspecs/midimessages.php
>>
>> And of course read the MIDI spec of the device you are wanting to  
>> control.
>>
>> Seb
>>
>>
>> Jason Proctor wrote:
>>> controllers 96 and 97, i think.
>>>
>>>
>>>
>>> At 8:55 PM +0100 7/28/09, Tom Wiltshire wrote:
>>>> I've got a quick question for MIDI gurus amongst you..
>>>>
>>>> I know there's a MIDI command for Program Change, and it seems  
>>>> to send the number of the required program. But many units have  
>>>> program increment/decrement buttons instead.
>>>>
>>>> Is there an actual MIDI command for program increment? Can I do  
>>>> it without knowing which patch I'm on now? Obviously if I do  
>>>> know, I can simply increment the number and then send a standard  
>>>> program change message.
>>>>
>>>> I'm asking because I spent the weekend making a set of MIDI bass  
>>>> pedals, and I'd like to add program inc/dec using footswitches  
>>>> on the top.
>>>>
>>>> Thanks,
>>>> Tom
>>>>
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