Re: Cadenza... in the MIDI

[H. S. Teoh]

On Thu, Nov 05, 2015 at 09:00:26PM +0000, Alberto Simões wrote:
> Hello
> 
> Probably this is in the manual, but I did not find it.
> 
> Is it possible to change the tempo (playing speed) in a specific zone
> of the music?
[...]

Usually what I do is to insert "invisible" \tempo marks to control midi
playback speed. Or more precisely, \tag them so that they are removed
from the typeset score, but included in the midi score. Something like
this:

        myMusic = {
                \tempo 4 = 120 % initial tempo
                ...
                \tag #'midi \tempo 4 = 130 % tweak midi tempo
                ...
                \tag #'midi \tempo 4 = 120 % set it back to "normal"
                ...
        }

        % Score for layout only
        \score {
                \removeWithTag #'midi \myMusic
                \layout {}
        }

        % Score for midi only
        \score {
                \myMusic
                \midi {}
        }


T

-- 
Those who don't understand D are condemned to reinvent it, poorly. -- Daniel N