+It is common that both chord names and fret diagrams are displayed together.
+This is achieved by putting a @code{ChordNames} context in parallel with
+a @code{FretBoards} context and giving both contexts the same music.
+
+@lilypond[verbatim, ragged-right, quote]
+\include "predefined-guitar-fretboards.ly"
+mychords = \chordmode{
+ c1 f g
+}
+
+<<
+ \context ChordNames {
+ \mychords
+ }
+ \context FretBoards {
+ \mychords
+ }
+>>
+@end lilypond
+
+Predefined fret diagrams are transposable, as long as a diagram for the
+transposed chord is stored in the fret diagram table.
+
+@lilypond[verbatim, ragged-right, quote]
+\include "predefined-guitar-fretboards.ly"
+mychords = \chordmode{
+ c1 f g
+}
+
+mychordlist = {
+ \mychords
+ \transpose c e { \mychords}
+}
+<<
+ \context ChordNames {
+ \mychordlist
+ }
+ \context FretBoards {
+ \mychordlist
+ }
+>>
+@end lilypond
+
+
+The predefined fret diagram table contains seven chords (major, minor,
+augmented, diminished, dominant seventh, major seventh, minor seventh)
+for each of 17 keys. A complete list of the predefined fret diagrams is
+shown in @ref{Predefined fretboard diagrams}. If there is no entry in
+the table for a chord, the FretBoards engraver will calculate a
+fret-diagram using the automatic fret diagram functionality described in
+@ref{Automatic fret diagrams}.
+
+@lilypond[verbatim, ragged-right, quote]
+\include "predefined-guitar-fretboards.ly"
+mychords = \chordmode{
+ c1 c:9
+}
+
+<<
+ \context ChordNames {
+ \mychords
+ }
+ \context FretBoards {
+ \mychords
+ }
+>>
+@end lilypond
+
+Fret diagrams can be added to the fret diagram table. To add a diagram,
+you must specify the chord for the diagram, the tuning to be used, and the
+fret-diagram-terse definition string for the diagram.
+
+@lilypond[verbatim, ragged-right, quote]
+\include "predefined-guitar-fretboards.ly"
+
+\storePredefinedDiagram \chordmode {c:9}
+ #guitar-tuning
+ #"x;3-2;2-1;3-3;3-4;x;"
+
+mychords = \chordmode{
+ c1 c:9
+}
+
+<<
+ \context ChordNames {
+ \mychords
+ }
+ \context FretBoards {
+ \mychords
+ }
+>>
+@end lilypond
+
+Different fret diagrams for the same chord name can be stored using different
+octaves of pitches.
+
+@lilypond[verbatim, ragged-right, quote]
+\include "predefined-guitar-fretboards.ly"
+
+\storePredefinedDiagram \chordmode {c'}
+ #guitar-tuning
+ #(offset-fret 2 (chord-shape 'bes))
+
+mychords = \chordmode{
+ c1 c'
+}
+
+<<
+ \context ChordNames {
+ \mychords
+ }
+ \context FretBoards {
+ \mychords
+ }
+>>
+@end lilypond
+
+In addition to fret diagrams, LilyPond stores an internal list of chord
+shapes. The chord shapes are fret diagrams that can be shifted along
+the neck to different posistions to provide different chords. Chord
+shapes can be added to the internal list and then used to define
+predefined fret diagrams.
+
+@lilypond[verbatim, ragged-right, quote]
+\include "predefined-guitar-fretboards.ly"
+
+% add a new chord shape
+
+\addChordShape #'powerf #"1-1;3-3;3-4;x;x;x;"
+
+% add some new chords based on the power chord shape
+
+\storePredefinedDiagram \chordmode {f'}
+ #guitar-tuning
+ #(chord-shape 'powerf)
+\storePredefinedDiagram \chordmode {g'}
+ #guitar-tuning
+ #(offset-fret 2 (chord-shape 'powerf))
+
+mychords = \chordmode{
+ f1 f' g g'
+}
+
+<<
+ \context ChordNames {
+ \mychords
+ }
+ \context FretBoards {
+ \mychords
+ }
+>>
+@end lilypond
+
+The graphical layout of a fret diagram can be customized according to
+user preference through the properties of the @code{fret-diagram-interface}.
+Details are found at @rinternals{fret-diagram-interface}. For a
+predefined fret diagram, the interface properties belong to
+@code{FretBoards.FretBoard}.
+
+@snippets
+
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{customizing-fretboard-fret-diagrams.ly}
+
+
+@seealso
+
+Notation Reference:
+@ref{Custom tablatures},
+@ref{Automatic fret diagrams},
+@ref{Chord mode overview},
+@ref{Predefined fretboard diagrams}.
+
+Installed Files:
+@file{ly/predefined-guitar-fretboards.ly}.
+
+Snippets:
+@rlsr{Fretted strings}.
+
+Internals Reference:
+@rinternals {fret-diagram-interface}.
+
+
+@node Automatic fret diagrams
+@subsubsection Automatic fret diagrams
+@cindex fret diagrams
+@cindex chord diagrams
+
+Fret diagrams can be automatically created from entered notes using the
+@code{FretBoards} context. If no predefined diagram is available for
+the entered notes in the active @code{stringTunings}, this context
+calculates strings and frets that can be used to play the notes.
+
+@lilypond[quote,ragged-right,verbatim]
+<<
+ \context ChordNames {
+ \chordmode {
+ f1 g
+ }
+ }
+ \context FretBoards {
+ < f, c f a c' f'>1
+ < g,\6 b, d g b g'>
+ }
+ \context Staff {
+ \clef "treble_8"
+ < f, c f a c' f'>1
+ < g, b, d g b' g'>
+ }
+>>
+@end lilypond
+
+As no predefined diagrams are loaded by default, automatic calculation
+of fret diagrams is the default behavior. Once default diagrams are
+loaded, automatic calculation can be enabled and disabled with predefined
+commands:
+
+@lilypond[quote,ragged-right,verbatim]
+
+\storePredefinedDiagram <c\5 e g c' e'>
+ #guitar-tuning
+ #"x;3-1-(;5-2;5-3;5-4;3-1-1);"
+<<
+ \context ChordNames {
+ \chordmode {
+ c1 c c
+ }
+ }
+ \context FretBoards {
+ <c\5 e g c' e'>1
+ \predefinedFretboardsOff
+ <c\5 e g c' e'>
+ \predefinedFretboardsOn
+ <c\5 e g c' e'>
+ }
+ \context Staff {
+ \clef "treble_8"
+ <c\5 e g c' e'>1
+ <c\5 e g c' e'>
+ <c\5 e g c' e'>
+ }
+>>
+@end lilypond
+
+
+
+Notes can be explicitly placed on a string. It is often enough
+to place only the lowest note on an explicit string; the rest of
+the notes will then be placed appropriately by the @code{FretBoards}
+context.
+
+@lilypond[quote,ragged-right,verbatim]
+<<
+ \context ChordNames {
+ \chordmode {
+ c1 c d:m d:m
+ }
+ }
+ \context FretBoards {
+ < c e g c' e' > 1
+ < c\5 e g c' e' > 1
+ < d a d' f'>
+ < d\4 a d' f'>
+ }
+ \context Staff {
+ \clef "treble_8"
+ < c e g c' e' > 1
+ < c e g c' e' > 1
+ < d a d' f'>
+ < d a d' f'>
+ }
+>>
+@end lilypond
+
+Fingerings can be added to FretBoard fret diagrams.
+
+@lilypond[quote, verbatim]
+<<
+ \context ChordNames {
+ \chordmode {
+ c1 d:m
+ }
+ }
+ \context FretBoards {
+ < c\5-3 e-2 g c'-1 e' > 1
+ < d\4 a-2 d'-3 f'-1>
+ }
+ \context Staff {
+ \clef "treble_8"
+ < c e g c' e' > 1
+ < d a d' f'>
+ }
+>>
+@end lilypond
+
+The strings and frets for the @code{FretBoards} context depend
+on the @code{stringTunings} property, which has the same meaning
+as in the TabStaff context. See @ref{Custom tablatures} for
+information on the @code{stringTunings} property.
+
+The graphical layout of a fret diagram can be customized according to
+user preference through the properties of the @code{fret-diagram-interface}.
+Details are found at @rinternals{fret-diagram-interface}. For a
+@code{FretBoards} fret diagram, the interface properties belong to
+@code{FretBoards.FretBoard}.
+
+@snippets
+The minimum fret to be used in calculating strings and frets for
+the FretBoard context can be set with the @code{minimumFret}
+property.
+
+@c TODO -- snippet showing minimum fret.
+
+@c TODO -- snippet for using StringTunings
+
+@predefined
+\predefinedFretboardsOff,
+\predefinedFretboardsOn.
+
+@seealso
+
+Notation Reference:
+@ref{Custom tablatures}.
+
+Snippets:
+@rlsr{Fretted strings}.
+
+Internals Reference:
+@rinternals {fret-diagram-interface}.
+
+
+@node Right-hand fingerings
+@subsubsection Right-hand fingerings
+
+Right-hand fingerings @var{p-i-m-a} must be entered within a
+chord construct @code{<>} for them to be printed in the score,
+even when applied to a single note.
+
+@warning{There @strong{must} be a hyphen after the note and a space
+before the closing @code{>}.}
+
+@lilypond[quote,verbatim,relative=0]
+\clef "treble_8"
+<c-\rightHandFinger #1 >4
+<e-\rightHandFinger #2 >
+<g-\rightHandFinger #3 >
+<c-\rightHandFinger #4 >
+<c,-\rightHandFinger #1 e-\rightHandFinger #2 g-\rightHandFinger #3 c-\rightHandFinger #4 >1
+@end lilypond
+
+For convenience, you can abbreviate @code{\rightHandFinger} to something
projects / lilypond.git / blobdiff