Re: articulate.ly script

[Aaron Hill]

On 2020-10-18 11:45 pm, Andrew Bernard wrote:
> OK. So, how do you tell it legato? Slurs? I am new to this area. And
> of course the visual output with rests is not musically correct, is it
> (not that it matters).

The documentation for \articulate is within the script itself.  See this 
excerpt:

%%% Technical Details:
% * Any note not under a slur or phrasing slur, and not marked with an
%   explicit articulation, is shortened by ac:normalFactor (default 
7/8).
%   (Shortening a note means replacing the note with a note of a smaller
%   duration, and a rest to make up for the difference between the 
durations
%   of the original and the shortened note.)
% * Notes marked with articulations are shortened by factors specific to 
the
%   articulation as follows:
%     staccato       not under a slur: ac:staccatoFactor (default 1/2)
%                    under a slur: ac:portatoFactor (default 3/4)
%     staccatissimo  ac:staccatissimoFactor (default 1/4)
%     portato        ac:portatoFactor (default 3/4)
%     tenuto         ac:tenutoFactor (default 1/1 - by default, notes 
marked
%                                     tenuto are not shortened)

You can redefine any of the ac:*Factor values to customize the effects.  
So, let us say you never want "normal" notes to be shortened:

%%%%
\version "2.20.0"
\include "articulate.ly"

#(define ac:normalFactor '(1 . 1))
\articulate { c'2 d'4 e' f'1 }
%%%%

Alternately, you would add slurs or use \tenuto to keep the length full.

While \articulate could be used for printed music, it is largely 
intended for MIDI output.  This pattern would be common:

%%%%
\version "2.20.0"
\include "articulate.ly"

music = { c'2 d'4 e' f'1 }
\score { \music \layout {} }
\score { \articulate \music \midi {} }
%%%%

You can use tags to mark things for MIDI only:

%%%%
\version "2.20.0"
\include "articulate.ly"

music = { c'2\tag #'midi ( d'4 e' f'1 \tag #'midi ) }
\score { \removeWithTag #'(midi) \music \layout {} }
\score { \articulate \music \midi {} }
%%%%


-- Aaron Hill