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Overriding articulations of distinct type

Sometimes you may want to affect a single articulation type. Although it is always possible to use \tweak, it might become tedious to do so for every single sign of a whole score. The following shows how to tweak articulations with a list of custom settings. One use case might be to create a style sheet.

With 2.16.2 it is possible to put the proposed function, \customScripts, into a \layout block.

% Code by David Nalesnik and Thomas Morley

#(define (custom-script-tweaks ls)
  (lambda (grob)
    (let* ((type (ly:prob-property
                    (ly:grob-property grob 'cause)
                    'articulation-type))
           (tweaks (assoc-ref ls type)))
      (if tweaks
          (for-each
            (lambda (x) (ly:grob-set-property! grob (car x) (cdr x)))
            tweaks)))))

customScripts =
#(define-music-function (settings)(list?)
#{
  \override Script.before-line-breaking =
    #(custom-script-tweaks settings)
#})

revertCustomScripts = { \revert Script.before-line-breaking }

%%%%%%%%%%%%%
% Example:
%%%%%%%%%%%%%

% Predefine a list of desired tweaks.
#(define my-settings-1
  '(
    ("staccato" . ((color . (1 0 0))(padding . 0.5)))
    ("accent" . ((font-size . 0)(color . (1 0 0))))
    ("tenuto" . ((rotation . (45 0 0)) (padding . 2)(font-size . 10)))
    ("staccatissimo" . ((padding . 1) (color . (1 0 0))))
    ("segno" . ((font-size . 0)(color . (1 0 0))))
    ))

#(define my-settings-2
  '(
    ("staccato" . ((color . (0 1 0))))
    ("accent" . ((font-size . 4)(color . (0 1 0))(padding . 1.5)))
    ("tenuto" . ((font-size . 10)))
    ("staccatissimo" . ((padding . 2) (color . (0 1 0))))
    ("coda" . ((color . (0 1 0)) (padding . 1)))
    ))

one =
\relative c'' {
  f1--
  \customScripts #my-settings-1
  f-. f-! f-> f-- f-!\segno
  \revertCustomScripts
  f-> f-.
}

two =
\relative c' {
  f1--
  \customScripts #my-settings-2
  f-. f-! f-> f---> f-!
  f-> f-.\coda
}

\new Staff <<
   \new Voice { \voiceOne \one }
   \new Voice { \voiceTwo \two }
   >>

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LilyPond snippets v2.25.15 (development-branch).