On Sun, Jan 29, 2017 at 06:49:59AM +0000,
domgoold@... [korgpolyex] wrote:
> Hi Mike
> thanks for that;, i'm checking it out.
> i can't see MIDI Channel in that - is that necessary?
> i'm pretty sure all previous sysex i've dealt with had a midich byte.
Sysex messages only specify that the start with $f0 and then the manufacturer and product code, and end with $f7 - there's nothing in the spec about sysex but that doesn't mean a particular manufacturer hasn't used a byte that specifies it.
There are good reasons not to, for example if you want to distribute patches using sysex and you want people to have to change channel on their instrument.
There are good reasons to use them, for example if you have a bunch of identical instruments and only want to change parameters on one of them.
--
Gordonjcp MM0YEQ