Re: Rallentando and accelerando in MIDI

[David Sumbler]

Further to my query (below) yesterday about varying ralls and accels in
midi, how do I actually get these to work at all?

At the moment the articulate script is working correctly in executing
trills, slurs etc.  But it ignores my "rit." markings and suchlike.  I
have tried entering these using "\mark \markup" and also attaching
"markup" to a note, but my midi files do not vary the tempo at all.

What syntax should I use to enter ralls and accels in a score?

David


> > Subject: Rallentando and accelerando in MIDI
> > Date: Mon, 29 Dec 2014 22:06:51 +0000
> > 
> > Rallentando and accelerando are supported in MIDI output if the
> > articulate.ly script is used.  Looking at the script, I can see how I
> > can additional synonyms for rall., rit. etc. that the script would then
> > recognize.  I can also begin to see how to change the amount of rall, or
> > accel. by modifying the script.
> > 
> > What I should like to be able to do sometimes is to alter the rate of
> > rall. or accel. "on the fly" - i.e. during the course of a piece.  I
> > suspect that this might be possible using some Scheme statements, but my
> > understanding of Scheme is insufficient for me even to know if this is
> > possible.
> > 
> > Can anyone tell me how to do this, or if it is even possible?
> > 
> > David