Re: Articulate midi script

[Philippe Hezaine]

David Raleigh Arnold a écrit :
> On Sun, 06 Sep 2009 20:49:50 +0200
> Grammostola Rosea <address@hidden> wrote:
>
> > David Raleigh Arnold wrote:
> > > On Sun, 6 Sep 2009 18:53:37 +0100
> > > Graham Percival <address@hidden> wrote:
> > >
> > >   
> > > > On Sun, Sep 06, 2009 at 12:23:28PM +0200, Grammostola Rosea wrote:
> > > >     
> > > > > @ Valentin, yeah would be nice if we could improve the midi output by  
> > > > > default. I can remember I mentioned this before, but one comment (not  
> > > > > from you) was that Lilypond was mainly a notation typesetter... And  
> > > > > while been busy with the lilywrap script, I was thinking, ok maybe  
> > > > > that's right, but what is wrong with having both, e.g. good lay-out and  
> > > > > good midi output?
> > > > >       
> > > > Of course there's nothing wrong with having both!  However, nobody
> > > > else wants to work on midi output.
> > > >     
> > > Again, why not get in touch with the developer(s) of midge? The
> > > syntax is completely different, but it is *text-based* and GNU.
> > > It is dedicated to midi, not notation.  Why not find a way to
> > > use their work, at worst by means of a translation script?
> > > Regards, daveA
> > >
> > >
> > >   
> > Could an improved articulate script no be enough? What can Midge add to 
> > Lilypond midi?
> >
> > \r
>
> Everything lilypond doesn't have. daveA

Hi,

I'm also sensitive to this problem mainly because it is in relation with 
the Drummer's "Gigsaw" project. Thanks to Dominic Sacré and his 
Mididings which help me to solve the issue of CC7. I wanted to change 
the way Lilypond encodes it by default to a velocity value. And it works 
perfectly. For now the Gigsaw is going to succeed in a third 
incarnation. Again a revolution. And i've been discovering and becoming 
very curious of midicomp a week ago which is also txt-based and GNU.
Unfortunately I have no skills with a language of programmation such 
awk, sed, python or perl.

For instance I'm wondering how to paste in a chronological way the <val>
from a Param line...
027:00:-336 Param   ch=10  con=7     val=10

...to a <vol> for a Note On line:
027:00:-336 On      ch=10  note=a4   vol=127

It's important to note that this two previous lines shows the same 
timing because sometimes in the list the Note On line and the Param line 
are inverted.
You'll see this case at the 4th and 5th line below.
And also to note there is a <vol> information for a note Off.

Here is an short excerpt of an ascii file from midicomp:
(the midi source comes from the Drummer's Gigsaw)

027:00:-192 Param   ch=10  con=7     val=31
027:00:-192 On      ch=10  note=a4   vol=127
027:00:-144 Off     ch=10  note=a4   vol=64
027:00:-144 On      ch=10  note=a4   vol=127
027:00:-144 Param   ch=10  con=7     val=31
027:00:-96 Off     ch=10  note=a4   vol=64
027:00:-96 Param   ch=10  con=7     val=31
027:00:-96 On      ch=10  note=a4   vol=127
027:00:-48 Off     ch=10  note=a4   vol=64
027:00:-48 Param   ch=10  con=7     val=49
027:00:-48 On      ch=10  note=a4   vol=127
027:00:000 Off     ch=10  note=a4   vol=64
028:-2:000 Param   ch=10  con=7     val=127
028:-2:000 On      ch=10  note=c#4  vol=127
028:-1:-288 Off     ch=10  note=c#4  vol=64
028:00:000 Param   ch=10  con=7     val=95
028:00:000 On      ch=10  note=a4   vol=127
028:00:192 Off     ch=10  note=a4   vol=64
034:00:000 On      ch=10  note=c#4  vol=127
034:00:000 Param   ch=10  con=7     val=105
034:00:080 Off     ch=10  note=c#4  vol=64
034:00:080 Param   ch=10  con=7     val=95
034:00:080 On      ch=10  note=c#4  vol=127
034:00:160 Off     ch=10  note=c#4  vol=64
034:00:161 Param   ch=10  con=7     val=95
034:00:161 On      ch=10  note=c#4  vol=127
034:00:241 Off     ch=10  note=c#4  vol=64

I think this excerpt doesn't cover all cases.
What happens with chords? I've not such example within reach for now.

I send you this example because I think midicomp is the best way to 
investigate the Lilypond's midi files and also in the hope someone is 
able to give me some hints to play the game. (smiley)

Cheers.
--
  Phil.