Re: Screwed-Up MIDI

[Will Oram]

Let me merge both responses into one mail.

On Feb 6, 2004, at 7.03 PM, Han-Wen Nienhuys wrote:

> address@hidden writes:
> > I've been working on an orchestral score for a few months now, and it
> > sounds great on MIDI. Just today I made a few tweaks to establish a 
> > new
> > \global. Now when I play generated MIDIs, it sounds fine...except for
> > one voice, solo violin. Instead of sounding like a violin, it uses
> > gunshots, and the timing is off. Looking at the score, you'd think
> > nothing changed from before.
>
> Your violin staff or voice ends up on Channel 10 - which is the
> percussion channel. Can you double check that you hear the same thing
> on other MIDI players? If yes, send a .ly snippet  that reproduces the
> problem.

I first tried it using MightyMIDI (a freeware Mac app), which has 
normally played 2.1.17 .midis fine. After it first happened, I tried it 
with QuickTime Player...same thing.

Again, this is rather odd considering I didn't make changes to the 
channel structure.

If you're looking for a .ly snippet, what did you have in mind?

Graham Percival wrote:
> IIRC, we saw this bug a couple of months ago, but I can't recall what 
> the
> solution was.
>
> 1)  What version of LilyPond are you using?
> 2)  How many MIDI tracks do you have?
>
>
> The problem I'm thinking of had to do with using 16 tracks (or 15, with
> an added "master" track, or something like that), which confused 
> LilyPond
> or the MIDI playback software or something like that.

1) 2.1.17, latest available for Mac at this moment.
2) 14. The order is woodwinds, brass, timpani, solo violin (the only 
trouble), strings.

Will Oram
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