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Construction et développement de diagrammes de fret

Voici différentes manières d’obtenir et de personnaliser des diagrammes de fret :

<<
  \chords {
    a1 a \bar "||" \break
    \repeat unfold 3 {
      c c c d d \bar "||" \break
    }
  }

  \new Voice {
    % Set global properties of fret diagram
    \override TextScript.size = 1.2
    \override TextScript.fret-diagram-details
                .finger-code = #'below-string
    \override TextScript.fret-diagram-details
                .dot-color = #'black

    % 1
    %
    % A chord for ukulele.
    a'1^\markup
      \override #'(fret-diagram-details
                   . ((string-count . 4)
                      (dot-color . white)
                      (finger-code . in-dot)))
      \fret-diagram "4-2-2;3-1-1;2-o;1-o;"

    % 2
    %
    % A chord for ukulele, with formatting defined in definition
    % string: 1.2 * size, 4 strings, 4 frets, fingerings below,
    % string dot radius .35 of fret spacing, dot position 0.55 of
    % fret spacing.
    a'1^\markup
      \override #'(fret-diagram-details
                   . ((dot-color . white)
                      (open-string . "o")))
      \fret-diagram
        "s:1.2;w:4;h:3;f:2;d:0.35;p:0.55;4-2-2;3-1-1;2-o;1-o;"


    %%
    %% These chords will be in normal orientation
    %%


    % 3
    %
    % C major for guitar, barred on third fret: verbose style,
    % roman fret label, finger labels below string, straight barre.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . roman-lower)
                      (finger-code . below-string)
                      (barre-type . straight)))
      \fret-diagram-verbose #'((mute 6)
                               (place-fret 5 3 1)
                               (place-fret 4 5 2)
                               (place-fret 3 5 3)
                               (place-fret 2 5 4)
                               (place-fret 1 3 1)
                               (barre 5 1 3))

    % 4
    %
    % C major for guitar, barred on third fret: double barre used
    % to test barre function, verbose style.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . arabic)
                      (dot-label-font-mag . 0.9)
                      (finger-code . in-dot)
                      (fret-label-font-mag . 0.6)
                      (fret-label-vertical-offset . 0)
                      (label-dir . -1)
                      (mute-string . "M")
                      (xo-font-magnification . 0.4)
                      (xo-padding . 0.3)))
      \fret-diagram-verbose #'((mute 6)
                               (place-fret 5 3 1)
                               (place-fret 4 5 2)
                               (place-fret 3 5 3)
                               (place-fret 2 5 4)
                               (place-fret 1 3 1)
                               (barre 4 2 5)
                               (barre 5 1 3))

    % 5
    %
    % C major for guitar, with capo on third fret: verbose style.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . roman-upper)
                      (dot-label-font-mag . 0.9)
                      (finger-code . none)
                      (fret-label-vertical-offset . 0.5)
                      (xo-font-magnification . 0.4)
                      (xo-padding . 0.3)))
      \fret-diagram-verbose #'((mute 6)
                               (capo 3)
                               (open 5)
                               (place-fret 4 5 1)
                               (place-fret 3 5 2)
                               (place-fret 2 5 3)
                               (open 1))

    % 6
    %
    % Simple D chord.
    d'1^\markup
      \override #'(fret-diagram-details
                   . ((finger-code . below-string)
                      (dot-radius . 0.35)
                      (string-thickness-factor . 0.3)
                      (dot-position . 0.5)
                      (fret-count . 3)))
      \fret-diagram-terse "x;x;o;2-1;3-2;2-3;"

    % 7
    %
    % Simple D chord, large top fret thickness.
    d'1^\markup
      \override #'(fret-diagram-details
                   . ((finger-code . below-string)
                      (dot-radius . 0.35)
                      (dot-position . 0.5)
                      (top-fret-thickness . 7)
                      (fret-count . 3)))
      \fret-diagram-terse "x;x;o;2-1;3-2;2-3;"


    %%
    %% These chords will be in landscape orientation
    %%
    \override TextScript.fret-diagram-details
                .orientation = #'landscape


    % 8
    %
    % C major for guitar, barred on third fret: verbose style,
    % roman fret label, finger labels below string, straight
    % barre.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . roman-lower)
                      (finger-code . below-string)
                      (barre-type . straight)))
      \fret-diagram-verbose #'((mute 6)
                               (place-fret 5 3 1)
                               (place-fret 4 5 2)
                               (place-fret 3 5 3)
                               (place-fret 2 5 4)
                               (place-fret 1 3 1)
                               (barre 5 1 3))

    % 9
    %
    % C major for guitar, barred on third fret: Double barre
    % used to test barre function, verbose style.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . arabic)
                      (dot-label-font-mag . 0.9)
                      (finger-code . in-dot)
                      (fret-label-font-mag . 0.6)
                      (fret-label-vertical-offset . 0)
                      (label-dir . -1)
                      (mute-string . "M")
                      (xo-font-magnification . 0.4)
                      (xo-padding . 0.3)))
      \fret-diagram-verbose #'((mute 6)
                               (place-fret 5 3 1)
                               (place-fret 4 5 2)
                               (place-fret 3 5 3)
                               (place-fret 2 5 4)
                               (place-fret 1 3 1)
                               (barre 4 2 5)
                               (barre 5 1 3))

    % 10
    %
    % C major for guitar, with capo on third fret: verbose style.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . roman-upper)
                      (dot-label-font-mag . 0.9)
                      (finger-code . none)
                      (fret-label-vertical-offset . 0.5)
                      (xo-font-magnification . 0.4)
                      (xo-padding . 0.3)))
      \fret-diagram-verbose #'((mute 6)
                               (capo 3)
                               (open 5)
                               (place-fret 4 5 1)
                               (place-fret 3 5 2)
                               (place-fret 2 5 3)
                               (open 1))

    % 11
    %
    % Simple D chord.
    d'1^\markup
      \override #'(fret-diagram-details
                   . ((finger-code . below-string)
                      (dot-radius . 0.35)
                      (dot-position . 0.5)
                      (fret-count . 3)))
      \fret-diagram-terse "x;x;o;2-1;3-2;2-3;"

    % 12
    %
    % Simple D chord, large top fret thickness.
    d'1^\markup
      \override #'(fret-diagram-details
                   . ((finger-code . below-string)
                      (dot-radius . 0.35)
                      (dot-position . 0.5)
                      (top-fret-thickness . 7)
                      (fret-count . 3)))
      \fret-diagram-terse "x;x;o;2-1;3-2;2-3;"


    %%
    %% These chords will be in opposing-landscape orientation.
    %%
    \override TextScript.fret-diagram-details
                .orientation = #'opposing-landscape


    % 13
    %
    % C major for guitar, barred on third fret: verbose style,
    % roman fret label, finger labels below string, straight
    % barre.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . roman-lower)
                      (finger-code . below-string)
                      (barre-type . straight)))
      \fret-diagram-verbose #'((mute 6)
                               (place-fret 5 3 1)
                               (place-fret 4 5 2)
                               (place-fret 3 5 3)
                               (place-fret 2 5 4)
                               (place-fret 1 3 1)
                               (barre 5 1 3))

    % 14
    %
    % C major for guitar, barred on third fret: double barre
    % used to test barre function, verbose style.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . arabic)
                      (dot-label-font-mag . 0.9)
                      (finger-code . in-dot)
                      (fret-label-font-mag . 0.6)
                      (fret-label-vertical-offset . 0)
                      (label-dir . -1)
                      (mute-string . "M")
                      (xo-font-magnification . 0.4)
                      (xo-padding . 0.3)))
      \fret-diagram-verbose #'((mute 6)
                               (place-fret 5 3 1)
                               (place-fret 4 5 2)
                               (place-fret 3 5 3)
                               (place-fret 2 5 4)
                               (place-fret 1 3 1)
                               (barre 4 2 5)
                               (barre 5 1 3))

    % 15
    %
    % C major for guitar, with capo on third fret: verbose style.
    c'1^\markup
      % 110% of default size
      \override #'(size . 1.1)
      \override #'(fret-diagram-details
                   . ((number-type . roman-upper)
                      (dot-label-font-mag . 0.9)
                      (finger-code . none)
                      (fret-label-vertical-offset . 0.5)
                      (xo-font-magnification . 0.4)
                      (xo-padding . 0.3)))
      \fret-diagram-verbose #'((mute 6)
                               (capo 3)
                               (open 5)
                               (place-fret 4 5 1)
                               (place-fret 3 5 2)
                               (place-fret 2 5 3)
                               (open 1))

    % 16
    %
    % Simple D chord.
    d'1^\markup
      \override #'(fret-diagram-details
                   . ((finger-code . below-string)
                      (dot-radius . 0.35)
                      (dot-position . 0.5)
                      (fret-count . 3)))
      \fret-diagram-terse "x;x;o;2-1;3-2;2-3;"

    % 17
    %
    % Simple D chord, large top fret thickness.
    d'1^\markup
      \override #'(fret-diagram-details
                   . ((finger-code . below-string)
                      (dot-radius . 0.35)
                      (dot-position . 0.5)
                      (top-fret-thickness . 7)
                      (fret-count . 3)))
      \fret-diagram-terse "x;x;o;2-1;3-2;2-3;"
  }
>>


\paper {
  tagline = ##f
  ragged-right = ##t
  indent = 0
  system-system-spacing.basic-distance = 20
}

\layout {
  \context {
    \Score
    \override SpacingSpanner.spacing-increment = 3
  }
}