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Editorial annotations

Editorial annotations

---

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Adding fingerings to a score

Fingering instructions can be entered using a simple syntax.

\relative c'' {
  c4-1 d-2 f-4 e-3
}

---

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Adding links to objects

To add a link to a grob stencil you can use add-link as defined here. It works both with \override and \tweak.

Drawback: point-and-click is disturbed for the linked grobs.

Limitation: Works for PDF only.

The linked objects are colored with a separate command. Note that the links are not displayed and are not clickable from inside the LSR.

#(define (add-link url-strg)
  (lambda (grob)
    (let* ((stil (ly:grob-property grob 'stencil)))
      (if (ly:stencil? stil)
          (let* ((x-ext (ly:stencil-extent stil X))
                 (y-ext (ly:stencil-extent stil Y))
                 (url-expr `(url-link ,url-strg ,x-ext ,y-ext))
                 (new-stil
                   (ly:stencil-add
                     (ly:make-stencil url-expr x-ext y-ext)
                     stil)))
          (ly:grob-set-property! grob 'stencil new-stil))))))

%%%% test

%% For easier maintenance of this snippet the URL is formatted to use the
%% actually used LilyPond version.
%% Of course a literal URL would work as well.

#(define major.minor-version
  (string-join (take (string-split (lilypond-version) #\.) 2) "."))

urlI =
#(format #f
  "http://lilypond.org/doc/v~a/Documentation/notation/writing-pitches"
  major.minor-version)

urlII =
#(format #f
  "http://lilypond.org/doc/v~a/Documentation/notation/rhythms"
  major.minor-version)

urlIII =
#(format #f
  "http://lilypond.org/doc/v~a/Documentation/notation/note-heads"
  major.minor-version)

urlIV =
#(format #f
  "http://lilypond.org/doc/v~a/Documentation/notation/beams"
  major.minor-version)

urlV =
#(format #f
  "http://lilypond.org/doc/v~a/Documentation/notation/note-head-styles"
  major.minor-version)

urlVI =
#(format #f
  "http://lilypond.org/doc/v~a/Documentation/notation/writing-pitches"
  major.minor-version)

\relative c' {
   \key cis \minor

   \once \override Staff.Clef.color = #green
   \once \override Staff.Clef.after-line-breaking =
     #(add-link urlI)

   \once \override Staff.TimeSignature.color = #green
   \once \override Staff.TimeSignature.after-line-breaking =
     #(add-link urlII)

   \once \override NoteHead.color = #green
   \once \override NoteHead.after-line-breaking =
     #(add-link urlIII)

   cis'1
   \once \override Beam.color = #green
   \once \override Beam.after-line-breaking =
     #(add-link urlIV)
   cis8 dis e fis gis2
   <gis,
    \tweak Accidental.color #green
    \tweak Accidental.after-line-breaking #(add-link urlVI)
    \tweak color #green
    \tweak after-line-breaking #(add-link urlV)
    \tweak style #'harmonic
    bis
    dis
    fis
   >1
   <cis, cis' e>
}

---

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Adding markups in a tablature

By default markups does not show in a tablature.

To make them appear, simply use the command \revert TabStaff.TextScript.stencil

%% http://lsr.di.unimi.it/LSR/Item?id=919
% by P.P.Schneider on June 2014

high  = { r4 r8 <g c'> q r8 r4 }

low = { c4 r4 c8 r8 g,8 b, }

pulse = { s8^"1" s^"&" s^"2" s^"&" s^"3" s^"&" s^"4" s^"&" }

\score {
 \new TabStaff {
   \repeat unfold 2 << \high \\ \low \\ \pulse >>
  }
  \layout {
    \context {
      \TabStaff
      \clef moderntab
      \revert TextScript.stencil
      \override TextScript.font-series = #'bold
      \override TextScript.font-size = #-2
      \override TextScript.color = #red

    }
    \context {
      \Score
      proportionalNotationDuration = #(ly:make-moment 1/8)
    }
  }
}

---

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Fingersatz auch innerhalb des Systems setzen

Normalerweise werden vertikal orientierte Fingersatzzahlen außerhalb des Systems gesetzt. Das kann aber verändert werden.

\relative c' {
  <c-1 e-2 g-3 b-5>2
  \override Fingering.staff-padding = #'()
  <c-1 e-2 g-3 b-5>4 g'-0
  a8[-1 b]-2 g-0 r
  \override Fingering.add-stem-support = ##f
  a[-1 b]-2 g-0 r
  \override Fingering.add-stem-support = ##t
  a[-1 b]-2 g-0 r
  \override Fingering.add-stem-support = #only-if-beamed
  a[-1 b]-2 g-0 r
}

---

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Alternative Taktnummerierung

Zwei alternative Methoden können eingestellt werden, die die Taktnummerierung beeinflussen, insbesondere bei Wiederholungen.

\relative c'{
  \set Score.alternativeNumberingStyle = #'numbers
  \repeat volta 3 { c4 d e f | }
    \alternative {
      { c4 d e f | c2 d \break }
      { f4 g a b | f4 g a b | f2 a | \break }
      { c4 d e f | c2 d }
    }
  c1 \break
  \set Score.alternativeNumberingStyle = #'numbers-with-letters
  \repeat volta 3 { c,4 d e f | }
    \alternative {
      { c4 d e f | c2 d \break }
      { f4 g a b | f4 g a b | f2 a | \break }
      { c4 d e f | c2 d }
    }
  c1
}

---

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Analysis brackets above the staff

Simple horizontal analysis brackets are added below the staff by default. The following example shows a way to place them above the staff instead.

\layout {
  \context {
    \Voice
    \consists "Horizontal_bracket_engraver"
  }
}

\relative c'' {
  \once \override HorizontalBracket.direction = #UP
  c2\startGroup
  d2\stopGroup
}

---

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Analysis brackets with labels

Text markup may be added to analysis brackets through the text property of the HorizontalBracketText grob. Adding different texts to brackets beginning at the same time requires the \tweak command.

Bracket text will be parenthesized after a line break.

\paper { tagline = ##f }

\layout {
  \context {
    \Voice
    \consists "Horizontal_bracket_engraver"
    \override HorizontalBracket.direction = #UP
  }
}

{
  \once\override HorizontalBracketText.text = "a"
    c''\startGroup d''\stopGroup
    \once\override HorizontalBracketText.text = "a'"
    e''\startGroup d''\stopGroup |
  c''-\tweak HorizontalBracketText.text
        \markup \bold \huge "b" \startGroup
     -\tweak HorizontalBracketText.text "a" \startGroup
    d''\stopGroup
    e''-\tweak HorizontalBracketText.text "a'" \startGroup
    d''\stopGroup\stopGroup |
  c''-\tweak HorizontalBracketText.text foo \startGroup
    d'' e'' f'' | \break
  g'' a'' b'' c'''\stopGroup
}

---

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Notenkopfstile basierend auf der Tonleiterstufe erstellen

Die shapeNoteStyles-(NotenFormenStile)-Eigenschaft kann benutzt werden, um verschiedene Notenstile für jeden Schritt der Tonleiter zu definieren (vorgegeben von der Tonart oder der „tonic“ (Tonika)-Eigenschaft. Diese Eigenschaft braucht eine Anzahl von Symbolen, welche beliebig sein können (geometrische Ausdrücke wie triangle (Dreieck), cross (Kreuz) und xcircle (X-Kreis) sind erlaubt) oder basierend auf einer alten amerikanischen Notensatztradition (einige lateinische Notenbezeichnungen sind auch erlaubt).

Um alte amerikanische Liederbücher zu imitieren, gibt es einige vordefinierte Notenstile wie etwa \aikenHeads (im Stil von Aiken) oder \sacredHarpHeads (im Stil der Sacred Harp-Tradition).

Dieses Beispiel zeigt, wie man unterschiedlich geformte Noten erhält und eine Melodie transponieren kann, ohne dass das Verhältnis zwischen den harmonischen Funktionen und dem Notenstil verloren geht.

fragment = {
  \key c \major
  c2 d
  e2 f
  g2 a
  b2 c
}

\new Staff {
  \transpose c d
  \relative c' {
    \set shapeNoteStyles = ##(do re mi fa
                               #f la ti)
    \fragment
  }

  \break

  \relative c' {
    \set shapeNoteStyles = ##(cross triangle fa #f
                               mensural xcircle diamond)
    \fragment
  }
}

---

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Blanking staff lines using the \whiteout command

The \whiteout command underlays a markup with a white box. Since staff lines are in a lower layer than most other grobs, this white box will not overlap any other grob.

\layout {
  ragged-right = ##f
}

\relative c' {
  \override TextScript.extra-offset = #'(2 . 4)
  c2-\markup { \whiteout \pad-markup #0.5 "middle C" } c
}

---

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Changing a single note’s size in a chord

Individual note heads in a chord can be modified with the \tweak command inside a chord, by altering the font-size property.

Inside the chord (within the brackets < >), before the note to be altered, place the \tweak command, followed by font-size and define the proper size like #-2 (a tiny note head).

\relative c' {
  <\tweak font-size #+2 c e g c
   \tweak font-size #-2 e>1
   ^\markup { A tiny e }_\markup { A big c }
}

---

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Changing the appearance of a slur from solid to dotted or dashed

The appearance of slurs may be changed from solid to dotted or dashed.

\relative c' {
  c4( d e c)
  \slurDotted
  c4( d e c)
  \slurSolid
  c4( d e c)
  \slurDashed
  c4( d e c)
  \slurSolid
  c4( d e c)
}

---

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Coloring notes depending on their pitch

It is possible to color note heads depending on their pitch and/or their names: the function used in this example even makes it possible to distinguish enharmonics.

%Association list of pitches to colors.
#(define color-mapping
   (list
    (cons (ly:make-pitch 0 0 NATURAL) (x11-color 'red))
    (cons (ly:make-pitch 0 0 SHARP) (x11-color 'green))
    (cons (ly:make-pitch 0 1 FLAT) (x11-color 'green))
    (cons (ly:make-pitch 0 2 NATURAL) (x11-color 'red))
    (cons (ly:make-pitch 0 2 SHARP) (x11-color 'green))
    (cons (ly:make-pitch 0 3 FLAT) (x11-color 'red))
    (cons (ly:make-pitch 0 3 NATURAL) (x11-color 'green))
    (cons (ly:make-pitch 0 4 SHARP) (x11-color 'red))
    (cons (ly:make-pitch 0 5 NATURAL) (x11-color 'green))
    (cons (ly:make-pitch 0 5 FLAT) (x11-color 'red))
    (cons (ly:make-pitch 0 6 SHARP) (x11-color 'red))
    (cons (ly:make-pitch 0 1 NATURAL) (x11-color 'blue))
    (cons (ly:make-pitch 0 3 SHARP) (x11-color 'blue))
    (cons (ly:make-pitch 0 4 FLAT) (x11-color 'blue))
    (cons (ly:make-pitch 0 5 SHARP) (x11-color 'blue))
    (cons (ly:make-pitch 0 6 FLAT) (x11-color 'blue))))

%Compare pitch and alteration (not octave).
#(define (pitch-equals? p1 p2)
   (and
    (= (ly:pitch-alteration p1) (ly:pitch-alteration p2))
    (= (ly:pitch-notename p1) (ly:pitch-notename p2))))

#(define (pitch-to-color pitch)
   (let ((color (assoc pitch color-mapping pitch-equals?)))
     (if color
         (cdr color))))

#(define (color-notehead grob)
   (pitch-to-color
    (ly:event-property (event-cause grob) 'pitch)))

\score {
  \new Staff \relative c' {
    \override NoteHead.color = #color-notehead
    c8 b d dis ees f g aes
  }
}

---

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Position von Fingersatz in Akkorden kontrollieren

Die Position von Fingersatzzahlen kann exakt kontrolliert werden.

\relative c' {
  \set fingeringOrientations = #'(left)
  <c-1 e-3 a-5>4
  \set fingeringOrientations = #'(down)
  <c-1 e-3 a-5>4
  \set fingeringOrientations = #'(down right up)
  <c-1 e-3 a-5>4
  \set fingeringOrientations = #'(up)
  <c-1 e-3 a-5>4
  \set fingeringOrientations = #'(left)
  <c-1>2
  \set fingeringOrientations = #'(down)
  <e-3>2
  \set stringNumberOrientations = #'(up left down)
  <f\3 a\2 c\1>1
  \set strokeFingerOrientations = #'(down right up)
  <c\rightHandFinger #1 e\rightHandFinger #2 c'\rightHandFinger #4 >
}

---

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Einen Doppelschlag mit Vorhalt erstellen

Einen Doppelschlag mit Vorhalt zu erstellen, wobei die untere Note das Vorzeichen benutzt, erfordert einige Einstellungsänderungen. Die outside-staff-priority-Eigenschaft muss auf falsch (#f) gesetzt werden, weil sie sonst über die Eigenschaft avoid-slur property dominieren würde. Der Wert von halign wird benutzt, um den Doppelschlag horizontal zu positionieren.

\relative c'' {
  \after 2*2/3 \turn c2( d4) r |
  \after 4 \turn c4.( d8)
  \after 4
  {
    \once \set suggestAccidentals = ##t
    \once \override AccidentalSuggestion.outside-staff-priority = ##f
    \once \override AccidentalSuggestion.avoid-slur = #'inside
    \once \override AccidentalSuggestion.font-size = -3
    \once \override AccidentalSuggestion.script-priority = -1
    \once \hideNotes
    cis8\turn \noBeam
  }
  d4.( e8)
}

---

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Creating blank staves

To create blank staves, generate empty measures then remove the Bar_number_engraver from the Score context, and the Time_signature_engraver, Clef_engraver and Bar_engraver from the Staff context.

#(set-global-staff-size 20)

\score {
  {
    \repeat unfold 12 { s1 \break }
  }
  \layout {
    indent = 0\in
    \context {
      \Staff
      \remove "Time_signature_engraver"
      \remove "Clef_engraver"
      \remove "Bar_engraver"
    }
    \context {
      \Score
      \remove "Bar_number_engraver"
    }
  }
}

% uncomment these lines for "letter" size
%{
\paper {
  #(set-paper-size "letter")
  ragged-last-bottom = ##f
  line-width = 7.5\in
  left-margin = 0.5\in
  bottom-margin = 0.25\in
  top-margin = 0.25\in
}
%}

% uncomment these lines for "A4" size
%{
\paper {
  #(set-paper-size "a4")
  ragged-last-bottom = ##f
  line-width = 180
  left-margin = 15
  bottom-margin = 10
  top-margin = 10
}
%}

---

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Creating double-digit fingerings

Creating fingerings larger than 5 is possible.

\relative c' {
  c1-10
  c1-50
  c1-36
  c1-29
}

---

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Standardrichtung für Hälse auf der Mittellinie

Die Richtung von Hälsen auf der mittleren Linie kann mit der Stem-Eigenschaft neutral-direction gesetzt werden.

\relative c'' {
  a4 b c b
  \override Stem.neutral-direction = #up
  a4 b c b
  \override Stem.neutral-direction = #down
  a4 b c b
}

---

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Different font size settings for instrumentName and shortInstrumentName

Choose different font sizes for instrumentName and shortInstrumentName as a context override.

InstrumentNameFontSize =
#(define-music-function (font-size-pair)(pair?)
"Sets the @code{font-size} of @code{InstrumentName}.
The font-size for the initial @code{instrumentName} is taken from the first
value in @var{font-size-pair}.  @code{shortInstrumentName} will get the second
value of @var{font-size-pair}.
"

;; This code could be changed/extended to set different values for each
;; occurance of `shortInstrumentName'

#{
  \override InstrumentName.after-line-breaking =
    #(lambda (grob)
       (let* ((orig (ly:grob-original grob))
              (siblings (if (ly:grob? orig)
                            (ly:spanner-broken-into orig)
                            '())))
         (if (pair? siblings)
             (begin
               (ly:grob-set-property!
                 (car siblings)
                 'font-size
                 (car font-size-pair))
               (for-each
                 (lambda (g)
                   (ly:grob-set-property! g 'font-size (cdr font-size-pair)))
                 (cdr siblings))))))
#})

\layout {
  \context {
    \Staff
    \InstrumentNameFontSize #'(6 . -3)
  }
}

\new StaffGroup <<
  \new Staff
     \with {
       instrumentName = "Flute"
       shortInstrumentName = "Fl."
     }
     { c''1 \break c'' \break c'' }
  \new Staff
   \with {
     instrumentName = "Violin"
     shortInstrumentName = "Vl."
   }
   { c''1 \break c'' \break c'' }
>>

---

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Drawing boxes around grobs

The print-function can be overridden to draw a box around an arbitrary grob.

\relative c'' {
  \override TextScript.stencil =
    #(make-stencil-boxer 0.1 0.3 ly:text-interface::print)
  c'4^"foo"

  \override Stem.stencil =
    #(make-stencil-boxer 0.05 0.25 ly:stem::print)
  \override Score.RehearsalMark.stencil =
    #(make-stencil-boxer 0.15 0.3 ly:text-interface::print)
  b8

  \revert Stem.stencil
  \revert Flag.stencil
  c4. c4
  \mark \default
  c1
}

---

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Drawing circles around note heads

Here is how to circle a note.

circle =
\once \override NoteHead.stencil = #(lambda (grob)
    (let* ((note (ly:note-head::print grob))
           (combo-stencil (ly:stencil-add
               note
               (circle-stencil note 0.1 0.8))))
          (ly:make-stencil (ly:stencil-expr combo-stencil)
            (ly:stencil-extent note X)
            (ly:stencil-extent note Y))))

{ \circle c'' }

---

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Drawing circles around various objects

The \circle markup command draws circles around various objects, for example fingering indications. For other objects, specific tweaks may be required: this example demonstrates two strategies for rehearsal marks and measure numbers.

\relative c' {
  c1
  \set Score.rehearsalMarkFormatter =
    #(lambda (mark context)
             (make-circle-markup (format-mark-numbers mark context)))
  \mark \default

  c2 d^\markup {
    \override #'(thickness . 3) {
      \circle \finger 2
    }
  }
  \override Score.BarNumber.break-visibility = #all-visible
  \override Score.BarNumber.stencil =
    #(make-stencil-circler 0.1 0.25 ly:text-interface::print)
}

---

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Embedding native PostScript in a \markup block

PostScript code can be directly inserted inside a \markup block.

% PostScript is a registered trademark of Adobe Systems Inc.

\relative c'' {
  a4-\markup { \postscript "3 4 moveto 5 3 rlineto stroke" }
  -\markup { \postscript "[ 0 1 ] 0 setdash 3 5 moveto 5 -3 rlineto stroke " }

  b4-\markup { \postscript "3 4 moveto 0 0 1 2 8 4 20 3.5 rcurveto stroke" }
  s2
  a'1
}

---

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Gitternetzlinien: Aussehen verändern

Die Erscheinung der Gitternetzlinien kann durch einige Eigenschaften geändert werden.

\score {
  \new ChoirStaff <<
    \new Staff {
      \relative c'' {
        \stemUp
        c'4. d8 e8 f g4
      }
    }
    \new Staff {
      \relative c {
        % this moves them up one staff space from the default position
        \override Score.GridLine.extra-offset = #'(0.0 . 1.0)
        \stemDown
        \clef bass
        \once \override Score.GridLine.thickness = #5.0
        c4
        \once \override Score.GridLine.thickness = #1.0
        g'4
        \once \override Score.GridLine.thickness = #3.0
        f4
        \once \override Score.GridLine.thickness = #5.0
        e4
      }
    }
  >>
  \layout {
    \context {
      \Staff
      % set up grids
      \consists "Grid_point_engraver"
      % set the grid interval to one quarter note
      gridInterval = #(ly:make-moment 1/4)
    }
    \context {
      \Score
      \consists "Grid_line_span_engraver"
      % this moves them to the right half a staff space
      \override NoteColumn.X-offset = #-0.5
    }
  }
}

---

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Grid lines: emphasizing rhythms and notes synchronization

Regular vertical lines can be drawn between staves to show note synchronization; however, in case of monophonic music, you may want to make the second stave invisible, and make the lines shorter like in this snippet.

\score {
  \new ChoirStaff {
    \relative c'' <<
      \new Staff {
        \time 12/8
        \stemUp
        c4. d8 e8 f g4 f8 e8. d16 c8
      }
      \new Staff {
        % hides staff and notes so that only the grid lines are visible
        \hideNotes
        \hide Staff.BarLine
        \override Staff.StaffSymbol.line-count = #0
        \hide Staff.TimeSignature
        \hide Staff.Clef

        % dummy notes to force regular note spacing
        \once  \override Score.GridLine.thickness = #4.0
        c8 c c
        \once  \override Score.GridLine.thickness = #3.0
        c8 c c
        \once  \override Score.GridLine.thickness = #4.0
        c8 c c
        \once  \override Score.GridLine.thickness = #3.0
        c8 c c
      }
    >>
  }
  \layout {
    \context {
      \Score
      \consists "Grid_line_span_engraver"
      % center grid lines horizontally below note heads
      \override NoteColumn.X-offset = #-0.5
    }
    \context {
      \Staff
      \consists "Grid_point_engraver"
      gridInterval = #(ly:make-moment 1/8)
      % set line length and positioning:
      % two staff spaces above center line on hidden staff
      % to four spaces below center line on visible staff
      \override GridPoint.Y-extent = #'(2 . -4)
    }
    ragged-right = ##t
  }
}

---

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Hammer on and pull off

Hammer-on and pull-off can be obtained using slurs.

\new TabStaff {
  \relative c' {
    d4( e\2)
    a( g)
  }
}

---

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Hammer on and pull off using chords

When using hammer-on or pull-off with chorded notes, only a single arc is drawn. However „double arcs“ are possible by setting the doubleSlurs property to #t.

\new TabStaff {
  \relative c' {
    % chord hammer-on and pull-off
    \set doubleSlurs = ##t
    <g' b>8( <a c> <g b>)
  }
}

---

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Hammer on and pull off using voices

The arc of hammer-on and pull-off is upwards in voices one and three and downwards in voices two and four:

\new TabStaff {
  \relative c' {
    << { \voiceOne g2( a) }
    \\ { \voiceTwo a,( b) }
    >> \oneVoice
  }
}

---

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Eine Linie des Notensystems dicker als die anderen machen

Für den pädagogischen Einsatz kann eine Linie des Notensystems dicker gezeichnet werden (z. B. die Mittellinie, oder um den Schlüssel hervorzuheben). Das ist möglich, indem man zusätzliche Linien sehr nahe an der Linie, die dicker erscheinen soll, einfügt. Dazu wird die line-positions-Eigenschaft herangezogen.

{
  \override Staff.StaffSymbol.line-positions =
    #'(-4 -2 -0.2 0 0.2 2 4)
  d'4 e' f' g'
}

---

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Marking notes of spoken parts with a cross on the stem (Sprechstimme)

This example shows how to put crosses on stems. Mark the beginning of a spoken section with the \speakOn keyword, and end it with the \speakOff keyword.

speakOn = {
  \override Stem.stencil =
    #(lambda (grob)
       (let* ((x-parent (ly:grob-parent grob X))
              (is-rest? (ly:grob? (ly:grob-object x-parent 'rest))))
         (if is-rest?
             empty-stencil
             (ly:stencil-combine-at-edge
              (ly:stem::print grob)
              Y
              (- (ly:grob-property grob 'direction))
              (grob-interpret-markup grob
                                     (markup #:center-align #:fontsize -4
                                             #:musicglyph "noteheads.s2cross"))
              -2.3))))
}

speakOff = {
  \revert Stem.stencil
  \revert Flag.stencil
}

\score {
  \new Staff {
    \relative c'' {
      a4 b a c
      \speakOn
      g4 f r g
      b4 r d e
      \speakOff
      c4 a g f
    }
  }
}

---

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Measure counter

This snippet provides a workaround for emitting measure counters using transparent percent repeats.

<<
  \context Voice = "foo" {
    \clef bass
    c4 r g r
    c4 r g r
    c4 r g r
    c4 r g r
  }
  \context Voice = "foo" {
    \set countPercentRepeats = ##t
    \hide PercentRepeat
    \override PercentRepeatCounter.staff-padding = #1
    \repeat percent 4 { s1 }
  }
>>

---

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Measure spanner

Measure spanners are an alternate way to print annotated brackets. As opposed to horizontal brackets, they extend between two bar lines rather than two notes. The text is displayed in the center of the bracket.

\paper { tagline = ##f }

\layout {
  \context {
    \Staff
    \consists Measure_spanner_engraver
  }
}

<<
  \new Staff \relative c'' {
    \key d \minor
    R1*2
    \tweak text "Answer"
    \startMeasureSpanner
    \tuplet 3/2 8 {
      a16[ b c] d[ c b]  c[ d e] f[ e d]
    }
    e8 a gis g
    fis f e d~ d c b e
    \stopMeasureSpanner
  }
  \new Staff \relative c' {
    \key d \minor
    \tweak text "Subject"
    \tweak direction #DOWN
    \startMeasureSpanner
    \tuplet 3/2 8 {
      d16[ e f] g[ f e] f[ g a] bes[ a g]
    }
    a8 d cis c
    b bes a g~ g f e a
    \stopMeasureSpanner
    \tweak text "Counter-subject"
    \tweak direction #DOWN
    \startMeasureSpanner
    f8 e a r r16 b, c d e fis g e
    a gis a b c fis, b a gis e a4 g8
    \stopMeasureSpanner
  }
>>

---

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Numbering groups of measures

This snippet demonstrates the use of the Measure_counter_engraver to number groups of successive measures. Any stretch of measures may be numbered, whether consisting of repetitions or not.

The engraver must be added to the appropriate context. Here, a Staff context is used; another possibility is a Dynamics context.

The counter is begun with \startMeasureCount and ended with \stopMeasureCount. Numbering will start by default with 1, but this behavior may be modified by overriding the count-from property.

When a measure extends across a line break, the number will appear twice, the second time in parentheses.

\layout {
  \context {
    \Staff
    \consists #Measure_counter_engraver
  }
}

\new Staff {
  \startMeasureCount
  \repeat unfold 7 {
    c'4 d' e' f'
  }
  \stopMeasureCount
  \bar "||"
  g'4 f' e' d'
  \override Staff.MeasureCounter.count-from = #2
  \startMeasureCount
  \repeat unfold 5 {
    g'4 f' e' d'
  }
  g'4 f'
  \bar ""
  \break
  e'4 d'
  \repeat unfold 7 {
    g'4 f' e' d'
  }
  \stopMeasureCount
}

---

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Positioning fingering indications precisely

Generally the options available for positioning the fingering of chords work well by default, but if one of the indications needs to positioned more precisely the following tweak may be used. This is particularly useful for correcting the positioning when intervals of a second are involved.

\relative c' {
  \set fingeringOrientations = #'(left)
  <c-1 d-2 a'-5>4
  <c-1 d-\tweak extra-offset #'(0 . 0.2)-2 a'-5>4
  \set fingeringOrientations = #'(down)
  <c-1 d-2 a'-5>4
  <c-\tweak extra-offset #'(0 . -1.1)-1
   d-\tweak extra-offset #'(-1.2 . -1.8)-2 a'-5>4
  \set fingeringOrientations = #'(down right up)
  <c-1 d-\tweak extra-offset #'(-0.3 . 0)-2 a'-5>4
  <c-1 d-\tweak extra-offset #'(-1 . 1.2)-2 a'-5>4
  \set fingeringOrientations = #'(up)
  <c-1 d-\tweak extra-offset #'(0 . 1.1)-2
   a'-\tweak extra-offset #'(0 . 1)-5>4
  <c-1 d-\tweak extra-offset #'(-1.2 . 1.5)-2
   a'-\tweak extra-offset #'(0 . 1.4)-5>4
}

---

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Textbeschriftung innerhalb von Bögen positionieren

Textbeschriftung kann innerhalb von Bögen gesetzt werden, wenn die outside-staff-priority-Eigenschaft auf falsch gesetzt wird.

\relative c'' {
  \override TextScript.avoid-slur = #'inside
  \override TextScript.outside-staff-priority = ##f
  c2(^\markup { \halign #-10 \natural } d4.) c8
}

---

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Printing text from right to left

It is possible to print text from right to left in a markup object, as demonstrated here.

{
  b1^\markup {
    \line { i n g i r u m i m u s n o c t e }
  }
  f'_\markup {
    \override #'(text-direction . -1)
    \line { i n g i r u m i m u s n o c t e }
  }
}

---

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String number extender lines

Make an extender line for string number indications, showing that a series of notes is supposed to be played all on the same string.

stringNumberSpanner =
  #(define-music-function (StringNumber) (string?)
    #{
      \override TextSpanner.style = #'solid
      \override TextSpanner.font-size = #-5
      \override TextSpanner.bound-details.left.stencil-align-dir-y = #CENTER
      \override TextSpanner.bound-details.left.text =
        \markup { \circle \number $StringNumber }
    #})


\relative c {
  \clef "treble_8"
  \stringNumberSpanner "5"
  \textSpannerDown
  a8\startTextSpan
  b c d e f\stopTextSpan
  \stringNumberSpanner "4"
  g\startTextSpan a
  bes4 a g2\stopTextSpan
}

---

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Using PostScript to generate special note head shapes

When a note head with a special shape cannot easily be generated with graphic markup, PostScript code can be used to generate the shape. This example shows how a parallelogram-shaped note head is generated.

parallelogram =
  #(ly:make-stencil (list 'embedded-ps
    "gsave
      currentpoint translate
      newpath
      0 0.25 moveto
      1.3125 0.75 lineto
      1.3125 -0.25 lineto
      0 -0.75 lineto
      closepath
      fill
      grestore" )
    (cons 0 1.3125)
    (cons -.75 .75))

myNoteHeads = \override NoteHead.stencil = \parallelogram
normalNoteHeads = \revert NoteHead.stencil

\relative c'' {
  \myNoteHeads
  g4 d'
  \normalNoteHeads
  <f, \tweak stencil \parallelogram b e>4 d
}

---

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Using the whiteout property

Any graphical object can be printed over a white background to mask parts of objects that lie beneath. This can be useful to improve the appearance of collisions in complex situations when repositioning objects is impractical. It is necessary to explicitly set the layer property to control which objects are masked by the white background. In this example the collision of the tie with the time signature is improved by masking out the part of the tie that crosses the time signature by setting the whiteout property of TimeSignature. To do this TimeSignature is moved to a layer above Tie, which is left in the default layer of 1, and StaffSymbol is moved to a layer above TimeSignature so it is not masked.

{
  \override Score.StaffSymbol.layer = #4
  \override Staff.TimeSignature.layer = #3
  b'2 b'~
  \once \override Staff.TimeSignature.whiteout = ##t
  \time 3/4
  b' r4
}

---

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