Construction et développement de diagrammes de fret

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

<<
  \chords {
    a2 a
    \repeat unfold 3 {
      c c c d d
    }
  }

  \new Voice = "mel" {
    \textLengthOn
    % 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

    %% A chord for ukulele
    a'2^\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;"
      }
    }

    %% 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'2^\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

    %% C major for guitar, barred on third fret
    %  verbose style
    %  roman fret label, finger labels below string, straight barre
    c'2^\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))
        }
      }
    }

    %% C major for guitar, barred on third fret
    %% Double barre used to test barre function
    %  verbose style
    c'2^\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))
        }
      }
    }

    %% C major for guitar, with capo on third fret
    %  verbose style
    c'2^\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))
        }
      }
    }

    %% simple D chord
    d'2^\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;"
      }
    }

    %% simple D chord, large top fret thickness
    d'2^\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

    %% C major for guitar, barred on third fret
    %  verbose style
    %  roman fret label, finger labels below string, straight barre
    c'2^\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))
        }
      }
    }

    %% C major for guitar, barred on third fret
    %% Double barre used to test barre function
    %  verbose style
    c'2^\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))
        }
      }
    }

    %% C major for guitar, with capo on third fret
    %  verbose style
    c'2^\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))
        }
      }
    }

    %% simple D chord
    d'2^\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;"
      }
    }

    %% simple D chord, large top fret thickness
    d'2^\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

    %% C major for guitar, barred on third fret
    %  verbose style
    %  roman fret label, finger labels below string, straight barre
    c'2^\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))
        }
      }
    }

    %% C major for guitar, barred on third fret
    %% Double barre used to test barre function
    %  verbose style
    c'2^\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))
        }
      }
    }

    %% C major for guitar, with capo on third fret
    %  verbose style
    c'2^\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))
        }
      }
    }

    %% simple D chord
    d'2^\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;"
      }
    }

    %% simple D chord, large top fret thickness
    d'2^\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;"
      }
    }
  }
>>

[image of music]


LilyPond snippets v2.25.12 (branche de développement).