I ran into this effect some time back, but I have no recall of exactly
where!  I didn't bother about it much at the time because it didn't
really affect me.

That code expressly handles Roland GS "Drum Parameters".
I don't really think it should be there at all, as, by definition,
NRPNs are "Non-Registered", and could be used by any MIDI
device for their own purpose.

I guess it doesn't do much harm, aside from the annoying message,
as midiin still picks up thge values if you need them.

	-- Pete --

On Fri, May 01, 2020 at 07:39:17PM +0100, john wrote:
> I am ignorant about MIDI ut that message omes from InOut/midirecv.c
> 
>           if (msb < 24 || msb == 25 || msb == 27 ||
>               msb > 31 || lsb < 25  || lsb > 87)
>             csound->Message(csound,
>                             Str("unknown drum param nos, msb %d lsb %d\n"),
>                             (int) msb, (int) lsb);
>           else {
> 
> Someone must recognise the numbers.....
> On Fri, 1 May 2020, Jeanette C. wrote:
> 
> >Hey hey,
> >this is not related to any of the MIDI input opcodes. The simplest way to 
> >provoke this is to have a valid CSD skeleton and in the options section 
> >something like:
> >-o dac -d --messagelevel=2 -Ma
> >
> >Then I move an NRPN knob on a connected MIDI keyboard and see this:
> >unknown drum param nos, msb 0 lsb some_value
> >
> >some_value depends on the actual knob tht is moved.
> >
> >Does anyone know why this happens and if something should be done about it 
> >inside an orchestra?
> >
> >Best wishes and TIA,
> >
> >Jeanette
> >
> >-- 
> >* Website: http://juliencoder.de - for summer is a state of sound
> >* Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
> >* SoundCloud: https://soundcloud.com/jeanette_c
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> >* Audiobombs: https://www.audiobombs.com/users/jeanette_c
> >* GitHub: https://github.com/jeanette-c
> >
> >We still move to a rhythm just like this
> >We still dream of sharing our first kiss <3
> >(Britney Spears)
> >
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> >
> 
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