X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=Documentation%2Fuser%2Ffretted-strings.itely;h=eb071b4bd2f5f533946e66765dd144b4a68d0945;hb=3fad7447039ca31737dc5c6d117b07bb0a1f0a67;hp=3e4f8a2f2af6018f7811cec5ca2997fcaf796aad;hpb=373b43f0685a4225a18bab403e1cd1caebc52d00;p=lilypond.git

diff --git a/Documentation/user/fretted-strings.itely b/Documentation/user/fretted-strings.itely
index 3e4f8a2f2a..eb071b4bd2 100644
--- a/Documentation/user/fretted-strings.itely
+++ b/Documentation/user/fretted-strings.itely
@@ -6,7 +6,7 @@
     version that you are working on.  See TRANSLATION for details.
 @end ignore
 
-@c \version "2.11.51"
+@c \version "2.11.61"
 
 @node Fretted string instruments
 @section Fretted string instruments
@@ -17,7 +17,10 @@ This section discusses several aspects of music notation that are unique
 to fretted string instruments.
 
 @cindex tablature
+@cindex tablature, guitar
+@cindex tablature, banjo
 @cindex guitar tablature
+@cindex banjo tablature
 
 @menu
 * Common notation for fretted strings::  
@@ -36,12 +39,14 @@ to fretted string instruments.
 * String number indications::   
 * Default tablatures::          
 * Custom tablatures::           
-* Fret diagrams::               
+* Fret diagram markups::
+* Predefined fret diagrams::
+* Automatic fret diagrams::               
 * Right-hand fingerings::       
 @end menu
 
 @node References for fretted strings
-@subsubsection References for fretted strings
+@unnumberedsubsubsec References for fretted strings
 
 Music for fretted string instruments is normally notated on
 a single staff, either in traditional music notation or in
@@ -68,18 +73,21 @@ in @ref{Collision resolution}.
 @seealso
 
 Notation Reference:
-@ref{Instrument names},
-@ref{Writing music in parallel},
 @ref{Fingering instructions},
 @ref{Ties},
+@ref{Collision resolution},
+@ref{Instrument names},
+@ref{Writing music in parallel},
 @ref{Arpeggio},
 @ref{List of articulations},
 @ref{Clef}.
 
 @node String number indications
-@subsubsection String number indications
+@unnumberedsubsubsec String number indications
 
-@cindex String numbers
+@cindex string numbers
+@cindex string vs. fingering numbers
+@cindex fingering vs. string numbers
 
 The string on which a note should be played may be indicated by
 appending @code{\@var{number}} to a note inside a chord construct
@@ -126,9 +134,13 @@ Internals Reference:
 
 
 @node Default tablatures
-@subsubsection Default tablatures
-@cindex Tablatures, basic
-@cindex Tablatures, default
+@unnumberedsubsubsec Default tablatures
+
+@cindex tablatures, basic
+@cindex tablatures, default
+
+@funindex TabStaff
+@funindex TabVoice
 
 Tablature notation is used for notating music for plucked string
 instruments.  Pitches are not denoted with note heads, but by
@@ -149,13 +161,14 @@ The notes are printed as tablature, by using @code{TabStaff} and
 @end lilypond
 
 @funindex minimumFret
+
 @cindex fret
 
 
 When no string is specified for a note, the note is assigned to
 the lowest string that can generate the note with a fret number
-greater than or equal to @code{minimumFret} is selected.  The
-default value for @code{minimumFret} is 0.
+greater than or equal to the value of @code{minimumFret}.
+The default value for @code{minimumFret} is 0.
 
 
 @lilypond[quote,ragged-right,verbatim]
@@ -173,57 +186,30 @@ default value for @code{minimumFret} is 0.
 >>
 @end lilypond
 
-@snippets
+@cindex harmonic indications in tablature notation
+@cindex tablature and harmonic indications
+@cindex slides in tablature notation
+@cindex tablature and slides
 
-The direction of stems is controlled the same way in tablature as
-in traditional notation. Beams can be made horizontal:
+Harmonic indications and slides can be added to tablature
+notation.
 
-@lilypond[quote,ragged-right,verbatim]
+@lilypond[fragment, verbatim, quote, relative=1]
 \new TabStaff {
-  \relative c {
-    g16 b d g
-    b d g b
-    \stemDown
-    \override Beam #'damping = #100000
-    g,,16 b d g
-    b d g b
+  \new TabVoice {
+    <c g'\harmonic> d\2\glissando e\2
   }
 }
 @end lilypond
 
-Polyphony is created the same way in a @code{TabStaff} as in a
-regular staff.
 
-@lilypond[quote,ragged-right,verbatim]
-upper = \relative c' {
-	\time 12/8
-	\key e \minor
-	\voiceOne
-	r4. r8 e, fis g16 b g e e' b c b a g fis e
-}
+@snippets
 
-lower = \relative c {
-	\key e \minor
-	\voiceTwo
-	r16 e d c b a g4 fis8 e fis g a b c  
-}
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{stem-and-beam-behavior-in-tablature.ly}
 
-\score {
-  <<
-    \new StaffGroup = "tab with traditional" <<
-      \new Staff = "guitar traditional" <<
-	    \clef "treble_8"
-	    \context Voice = "upper" \upper
-	    \context Voice = "lower" \lower
-      >>
-      \new TabStaff = "guitar tab" << 
-            \context TabVoice = "upper"  \upper 
-            \context TabVoice = "lower"  \lower 
-      >>
-    >>
-  >>
-}
-@end lilypond
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{polyphony-in-tablature.ly}
 
 @seealso
 
@@ -261,31 +247,26 @@ melodia = \partcombine { e4 g g g }{ e4 e e e }
 >>
 @end lilypond
 
+Guitar special effects are limited to harmonics and slides.
 
 @node Custom tablatures
-@subsubsection Custom tablatures
-@cindex Tablatures, custom
+@unnumberedsubsubsec Custom tablatures
 
-You can change the tuning of the strings.  A string tuning is
-given as a Scheme list with one integer number for each string,
-the number being the pitch (measured in semitones relative to
-middle C) of an open string.  The numbers specified for
-@code{stringTunings} are the numbers of semitones to subtract or
-add, starting the specified pitch by default middle C, in string
-order.  LilyPond automatically calculates the number of strings by
-looking at @code{stringTunings}.
+@cindex tablatures, custom
+@cindex tablature, banjo
+@cindex tablature, mandolin
+@cindex tablature, bass guitar
+@cindex tablature, predefined string tunings
+@cindex fretted instruments, predefined string tunings
+@cindex predefined string tunings for fretted instruments
 
-In the next example, @code{stringTunings} is set for the pitches
-e, a, d, and g.
+@funindex StringTunings
 
-@lilypond[quote,ragged-right,fragment,verbatim]
-\new TabStaff <<
-  \set TabStaff.stringTunings = #'(-5 -10 -15 -20)
-  {
-    a,4 c' a e' e c' a e'
-  }
->>
-@end lilypond
+LilyPond tabulature automatically calculates the fret for 
+a note based on the string to which the note is assigned.
+In order to do this, the tuning of the strings must be
+specified.  The tuning of the strings is given in the
+@code{StringTunings} property.
 
 LilyPond comes with predefined string tunings for banjo, mandolin,
 guitar and bass guitar.  Lilypond automatically sets the correct 
@@ -294,46 +275,87 @@ for bass guitar, which sounds an octave lower than written.
 
 @lilypond[quote,ragged-right,verbatim]
 <<
-  \new Staff <<
+  \new Staff {
     \clef "bass_8"
     \relative c, {
-    c4 d e f
+      c4 d e f
     }
-  >>
-  \new TabStaff <<
+  }
+  \new TabStaff {
     \set TabStaff.stringTunings = #bass-tuning
     \relative c, {
-    c4 d e f
+      c4 d e f
     }
-  >>
+  }
 >>
 @end lilypond
 
-The default string tuning is @code{guitar-tuning} (the standard
-EADGBE tuning).  Some other predefined tunings are
+The default string tuning is @code{guitar-tuning}, which
+is the standard EADGBE tuning.  Some other predefined tunings are
 @code{guitar-open-g-tuning}, @code{mandolin-tuning} and
-@code{banjo-open-g-tuning}.
+@code{banjo-open-g-tuning}.  The predefined string tunings 
+are found in @code{scm/output-lib.scm}.
 
-@seealso
+A string tuning is a Scheme list of string pitches, 
+one for each string, ordered by string number from 1 to N,
+where string 1 is at the top of the tablature staff and
+string N is at the bottom.  This ordinarily results in ordering 
+from highest pitch to lowest pitch, but some instruments 
+(e.g. ukulele) do not have strings ordered by pitch.
 
-Snippets:
-@rlsr{Fretted strings}.
+A string pitch in a string tuning list is the pitch difference  
+of the open string from middle C measured in semitones.  The 
+string pitch must be an integer.  Lilypond calculates the actual 
+pitch of the string by adding the string tuning pitch to the 
+actual pitch for middle C.
 
-The file @file{scm/@/output@/-lib@/.scm} contains the predefined string
-tunings.
+LilyPond automatically calculates the number of strings in the
+@code{TabStaff} as the number of elements in @code{stringTunings}.
 
-Internals Reference: @rinternals{Tab_note_heads_engraver}.
+Any desired string tuning can be created.  For example, we can
+define a string tuning for a four-string instrument with pitches
+of @code{a''},  @code{d''},  @code{g'}, and @code{c'}:
 
-@knownissues
 
-No guitar special effects have been implemented.
+@lilypond[quote,verbatim]
+mynotes = {
+    c'4 e' g' c'' |
+    e'' g'' b'' c'''
+}
 
+<<
+  \new Staff {
+    \clef treble
+    \mynotes
+  }
+  \new TabStaff {
+    \set TabStaff.stringTunings = #'(21 14 7 0)
+    \mynotes
+  }
+>>
+@end lilypond
 
+@seealso
+
+Installed Files:
+@file{scm/output-lib.scm}.
+
+Snippets:
+@rlsr{Fretted strings}.
+
+Internals Reference: 
+@rinternals{Tab_note_heads_engraver}.
+
+
+@node Fret diagram markups
+@unnumberedsubsubsec Fret diagram markups
 
-@node Fret diagrams
-@subsubsection Fret diagrams
 @cindex fret diagrams
 @cindex chord diagrams
+@cindex diagrams, fret
+@cindex diagrams, chord for fretted instruments
+@cindex fret diagrams, custom
+@cindex custom fret diagrams
 
 Fret diagrams can be added to music as a markup to the desired
 note.  The markup contains information about the desired fret
@@ -343,6 +365,285 @@ produce equivalent markups, but have varying amounts of
 information in the markup string.  Details about the markup
 interfaces are found at @ref{Text markup commands}.
 
+The standard fret diagram markup string indicates the string
+number and the fret number for each dot to be placed on the string.
+In addition, open and unplayed (muted) strings can be indicated.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode { 
+       c1 d:m          
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    < c e g c' e' > 1 ^\markup 
+      \fret-diagram #"6-x;5-3;4-2;3-o;2-1;1-o;"
+    < d a d' f'> ^\markup
+      \fret-diagram #"6-x;5-x;4-o;3-2;2-3;1-1;"
+  }  
+>>
+@end lilypond
+
+@cindex barre indications
+
+Barre indications can be added to the diagram from
+the fret-diagram markup string.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode {
+       f1 g
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    < f, c f a c' f'>1 ^\markup
+      \fret-diagram #"c:6-1-1;6-1;5-3;4-3;3-2;2-1;1-1;"
+    < g, d g b d' g'> ^\markup
+      \fret-diagram #"c:6-1-3;6-3;5-5;4-5;3-4;2-3;1-3;"
+  }
+>>
+@end lilypond
+
+@cindex fret-diagram markup
+
+@funindex fret-diagram
+@funindex \fret-diagram
+
+The size of the fret diagram, and the number of frets in the diagram
+can be changed in the fret-diagram markup string.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode {
+       f1 g
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    < f, c f a c' f'>1 ^\markup
+      \fret-diagram #"s:1.5;c:6-1-1;6-1;5-3;4-3;3-2;2-1;1-1;"
+    < g, b, d g b g'> ^\markup
+      \fret-diagram #"h:6;6-3;5-2;4-o;3-o;2-o;1-3;"
+  }
+>>
+@end lilypond
+
+The number of strings in a fret diagram can be changed to accomodate
+different instruments such as banjos and ukeleles with the fret-diagram
+markup string.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode {
+       a1
+     }
+  }
+  \context Staff {
+        %% A chord for ukelele
+    a'1 ^\markup \fret-diagram #"w:4;4-2-2;3-1-1;2-o;1-o;"
+  }
+>>
+@end lilypond
+
+Fingering indications can be added, and the location of fingering labels
+can be controlled by the fret-diagram markup string.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode { 
+       c1 d:m          
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    < c e g c' e' > 1 ^\markup 
+      \fret-diagram #"f:1;6-x;5-3-3;4-2-2;3-o;2-1-1;1-o;"
+    < d a d' f'> ^\markup
+      \fret-diagram #"f:2;6-x;5-x;4-o;3-2-2;2-3-3;1-1-1;"
+  }  
+>>
+@end lilypond
+
+Dot radius and dot position can be controlled with the fret-diagram
+markup string.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode { 
+       c1 d:m          
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    < c e g c' e' > 1 ^\markup 
+      \fret-diagram #"d:0.35;6-x;5-3;4-2;3-o;2-1;1-o;"
+    < d a d' f'> ^\markup
+      \fret-diagram #"p:0.2;6-x;5-x;4-o;3-2;2-3;1-1;"
+  }  
+>>
+@end lilypond
+
+@cindex fret-diagram-terse markup
+
+@funindex fret-diagram-terse
+@funindex \fret-diagram-terse
+
+The fret-diagram-terse markup string omits string numbers; the string
+number is implied by the presence of semicolons.  There is one semicolon 
+for each string in the diagram.  The first semicolon corresponds to the
+highest string number and the last semicolon corresponds to the first string.
+Mute strings, open strings, and fret numbers can be indicated.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode {
+       c1 d:m
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    < c e g c' e' > 1 ^\markup
+      \fret-diagram-terse #"x;3;2;o;1;o;"
+    < d a d' f'> ^\markup
+      \fret-diagram-terse #"x;x;o;2;3;1;"
+  }
+>>
+@end lilypond
+
+Barre indicators can be included in the fret-diagram-terse markup string.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode {
+       f1 g
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    < f, c f a c' f'>1 ^\markup
+      \fret-diagram-terse #"1-(;3;3;2;1;1-);"
+    < g, d g b d' g'> ^\markup
+      \fret-diagram-terse #"3-(;5;5;4;3;3-);"
+  }
+>>
+@end lilypond      
+
+Fingering indications can be included in the fret-diagram-terse markup string.
+
+@c Need to use override to enable fingerings to show this -- can we do so?
+@lilypond[quote, verbatim]
+<<    
+  \context ChordNames {
+     \chordmode {
+       c1 d:m
+     }
+  }
+  \context Staff {
+    \override Voice.TextScript 
+      #'fret-diagram-details #'finger-code = #'below-string
+    \clef "treble_8"
+    < c e g c' e' > 1 ^\markup
+      \fret-diagram-terse #"x;3-3;2-2;o;1-1;o;"
+    < d a d' f'> ^\markup
+      \fret-diagram-terse #"x;x;o;2-2;3-3;1-1;"
+  }
+>>
+@end lilypond
+
+Other fret diagram properties must be adjusted using @code{\override} when using
+the fret-diagram-terse markup.
+
+@cindex fret-diagram-verbose markup
+
+@funindex fret-diagram-verbose
+@funindex \fret-diagram-verbose
+
+The fret-diagram-verbose markup string is in the format of a Scheme list.  Each
+element of the list indicates an item to be placed on the fret diagram.
+
+@lilypond[quote, verbatim]
+<<  \context ChordNames {
+     \chordmode {
+       c1 d:m
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    < c e g c' e' > 1 ^\markup
+      \fret-diagram-verbose #'(
+        (mute 6)
+        (place-fret 5 3)
+        (place-fret 4 2)
+        (open 3)
+        (place-fret 2 1)
+        (open 1)
+      )
+    < d a d' f'> ^\markup
+      \fret-diagram-verbose #'(
+        (mute 6)
+        (mute 5)
+        (open 4)
+        (place-fret 3 2)
+        (place-fret 2 3)
+        (place-fret 1 1)
+      )
+  }
+>>
+@end lilypond
+
+Fingering indications and barres can be included in a 
+fret-diagram-verbose markup string.
+
+@c \override is necessary to make fingering visible
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode {
+       f1 g
+     }
+  }
+  \context Staff {
+    \clef "treble_8"
+    \override Voice.TextScript
+      #'fret-diagram-details #'finger-code = #'below-string
+
+    < f, c f a c' f'>1 ^\markup
+      \fret-diagram-verbose #'(
+        (place-fret 6 1)
+        (place-fret 5 3)
+        (place-fret 4 3)
+        (place-fret 3 2)
+        (place-fret 2 1)
+        (place-fret 1 1)
+        (barre 6 1 1)
+      )
+    < g, b, d g b g'> ^\markup
+      \fret-diagram-verbose #'(
+        (place-fret 6 3 2)
+        (place-fret 5 2 1)
+        (open 4)
+        (open 3)
+        (open 2)
+        (place-fret 1 3 3)
+      )
+  }
+>>
+@end lilypond
+
+All other fret diagram properties must be adjusted using @code{\override} 
+when using the fret-diagram-verbose markup.
+
+@ignore
 The following example shows the three fret-diagram markup
 interfaces, along with examples of common tweaks.  For example,
 the size of the verbose fret diagram is reduced to 0.75, and the
@@ -376,19 +677,468 @@ and color of dots.
   c c c
 }
 @end lilypond
+@end ignore
+
+@cindex customized fret diagram
+@cindex fret diagram, customized
+@cindex diagram, fret, customized
+
+@funindex fret-diagram-interface
+
+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 fret diagram
+markup, the interface properties belong to @code{Voice.TextScript}.
 
-You can set a number of graphical properties according to your preference.
-Details about the property interface to fret diagrams are found at
+@snippets
+
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{customizing-markup-fret-diagrams.ly}
+
+
+@seealso
+
+Notation Reference:
+@ref{Text markup commands}.
+
+Snippets:
+@rlsr{Fretted strings}.
+
+Internals Reference:
 @rinternals{fret-diagram-interface}.
 
+@node Predefined fret diagrams
+@unnumberedsubsubsec Predefined fret diagrams
+
+
+@cindex fret diagrams
+@cindex chord diagrams
+
+@funindex FretBoards
+@funindex stringTunings
+
+Fret diagrams can be displayed using the @code{FretBoards} context.  By
+default, the @code{FretBoards} context will display fret diagrams that
+are stored in a lookup table:
+
+@lilypond[verbatim, ragged-right, quote]
+\include "predefined-guitar-fretboards.ly"
+\context FretBoards {
+  \chordmode {
+    c1 d
+  }
+}
+@end lilypond
+
+The default predefined fret diagrams are contained in the file
+@code{predefined-guitar-fretboards.ly}.  Fret diagrams are 
+stored based on the pitches of a chord and the value of
+@code{stringTunings} that is currently in use.  
+@code{predefined-guitar-fretboards.ly} contains predefined 
+fret diagrams only for @code{guitar-tuning}.  Predefined fret
+diagrams can be added for other instruments or other tunings
+by following the examples found in 
+@code{predefined-guitar-fretboards.ly}.  
+
+Chord pitches can be entered
+either as simultaneous music or using chord mode (see
+@ref{Chord mode overview}).
+
+@lilypond[verbatim, ragged-right,quote]
+\include "predefined-guitar-fretboards.ly"
+\context FretBoards {
+  \chordmode {c1}
+  <c' e' g'>1
+}
+@end lilypond
+
+@cindex chord names with fret diagrams
+@cindex fret diagrams with chord names
+
+@funindex ChordNames
+@funindex chordmode
+@funindex \chordmode
+
+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
+
+@cindex transposing fret diagrams
+@cindex fret diagrams, transposing
+@cindex diagrams, fret, transposing
+
+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
+
+@cindex fret diagrams, adding custom
+@cindex custom fret diagrams, adding
+@cindex adding custom fret diagrams
+
+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
+
+@cindex fretted instruments, chord shapes
+@cindex chord shapes for fretted instruments
+
+@funindex \addChordShape
+@funindex add ChordShape
+@funindex storePredefinedDiagram
+@funindex \storePredefinedDiagram
+
+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
+@unnumberedsubsubsec Automatic fret diagrams
+
+@cindex fret diagrams, automatic
+@cindex chord diagrams, automatic
+@cindex automatic fret diagrams
+@cindex automatic 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
+
+@funindex predefinedFretboardsOff
+@funindex \predefinedFretboardsOff
+@funindex predefinedFretboardsOn
+@funindex \predefinedFretboardsOn
+
+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 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 e g c' e'>1
+    \predefinedFretboardsOff
+    <c e g c' e'>
+    \predefinedFretboardsOn
+    <c e g c' e'>
+  }
+  \context Staff {
+    \clef "treble_8"
+    <c e g c' e'>1
+    <c e g c' e'>
+    <c e g c' e'>
+  }  
+>>
+@end lilypond
+
+  
+
+Sometimes the fretboard calculator will be unable to find
+an accceptable diagram.  This can often be remedied by
+manually assigning a note to a string.  In many cases, only one
+note need be manually placed on a 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 
+     }
+  }
+  \context FretBoards {
+    < c g c' e' g'> 1
+    < c g\4 c' e' g'> 1
+  }
+  \context Staff {
+    \clef "treble_8"
+    < c g c' e' g'> 1
+    < c g c' e' g'> 1
+  }  
+>>
+@end lilypond
+
+@cindex fret diagrams, adding fingerings
+@cindex fingerings, adding to fret diagrams
+
+Fingerings can be added to FretBoard fret diagrams.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode { 
+       c1 d:m          
+     }
+  }
+  \context FretBoards {
+    < c-3 e-2 g c'-1 e' > 1
+    < d a-2 d'-3 f'-1>
+  }
+  \context Staff {
+    \clef "treble_8"
+    < c e g c' e' > 1
+    < d a d' f'>
+  }  
+>>
+@end lilypond
+
+The minimum fret to be used in calculating strings and frets for
+the FretBoard context can be set with the @code{minimumFret}
+property.
+
+@lilypond[quote, verbatim]
+<<
+  \context ChordNames {
+     \chordmode {
+       d1:m d:m
+     }
+  }
+  \context FretBoards {
+    < d a d' f'>
+    \set FretBoards.minimumFret = #5
+    < d a d' f'>
+  }
+  \context Staff {
+    \clef "treble_8"
+    < d a d' f'>
+    < 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}.
+
+@predefined
+@code{\predefinedFretboardsOff},
+@code{\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
+@unnumberedsubsubsec Right-hand fingerings
+
+@cindex fretted instruments, right hand fingerings
+@cindex fingerings, right hand for fretted instruments
+@cindex right hand fingerings for fretted instruments
+
+@funindex rightHandFinger
+@funindex \rightHandFinger
 
 Right-hand fingerings @var{p-i-m-a} must be entered within a  
 chord construct @code{<>} for them to be printed in the score, 
@@ -413,40 +1163,14 @@ short, for example @code{RH},
 #(define RH rightHandFinger)
 @end example
 
-@cindex fingerings, right hand, for guitar
-@cindex right hand fingerings for guitar
 
 @snippets
 
-You may exercise greater control over the placement of right-hand 
-fingerings by setting @code{strokeFingerOrientations},
-
-@lilypond[quote,verbatim]
-#(define RH rightHandFinger)
-\relative c {
-  \clef "treble_8"
-  \set strokeFingerOrientations = #'(up down)
-  <c-\RH #1 e-\RH #2 g-\RH #3 c-\RH #4 > 4
-  \set strokeFingerOrientations = #'(up right down)
-  <c-\RH #1 e-\RH #2 g-\RH #3 c-\RH #4 > 4
-  \set strokeFingerOrientations = #'(left)
-  <c-\RH #1 e-\RH #2 g-\RH #3 c-\RH #4 > 2
-}
-@end lilypond
-
-This example combines left-hand fingering, string indication, and 
-right-hand fingering
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{placement-of-right-hand-fingerings.ly}
 
-@lilypond[quote,verbatim]
-#(define RH rightHandFinger)
-\relative c {
-  \clef "treble_8"
-  <c-3\5-\RH #1 >4 
-  <e-2\4-\RH #2 > 
-  <g-0\3-\RH #3 > 
-  <c-1\2-\RH #4 >
-}
-@end lilypond
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{fingerings,-string-indications,-and-right-hand-fingerings.ly}
 
 @seealso
 
@@ -475,7 +1199,10 @@ or, for experienced users, a typesetter like GuitarTeX.
 @end menu
 
 @node Indicating position and barring
-@subsubsection Indicating position and barring
+@unnumberedsubsubsec Indicating position and barring
+
+@cindex indicating position and barring for fretted instruments
+@cindex fretted instruments, indicating position and barring
 
 This example demonstrates how to include guitar position and
 barring indications.
@@ -490,8 +1217,22 @@ b16 d g b e
 e16 b g d
 @end lilypond
 
+@seealso
+
+Notation Reference:
+@ref{Text spanners}.
+
+Snippets:
+@rlsr{Fretted strings},
+@rlsr{Expressive marks}.
+
 @node Indicating harmonics and dampened notes
-@subsubsection Indicating harmonics and dampened notes
+@unnumberedsubsubsec Indicating harmonics and dampened notes
+
+@cindex fretted instruments, dampened notes
+@cindex fretted instruments, harmonics
+@cindex dampened notes on fretted instruments
+@cindex harmonics on fretted instruments
 
 Special note heads can be used to indicate dampened notes or 
 harmonics.  Harmonics are normally further explained with a 
@@ -524,8 +1265,10 @@ Notation Reference:
 @end menu
 
 @node Banjo tablatures
-@subsubsection Banjo tablatures
-@cindex Banjo tablatures
+@unnumberedsubsubsec Banjo tablatures
+
+@cindex banjo tablatures
+@cindex tablature, banjo
 
 LilyPond has basic support for the five-string banjo.  When making tablatures
 for five-string banjo, use the banjo tablature format function to get
@@ -546,12 +1289,21 @@ correct fret numbers for the fifth string:
 >>
 @end lilypond
 
+@cindex banjo tunings
+@cindex tunings, banjo
+
+@funindex banjo-c-tuning
+@funindex banjo-modal-tuning
+@funindex banjo-open-d-tuning
+@funindex banjo-open-dm-tuning
+@funindex four-string-banjo
+
 A number of common tunings for banjo are predefined in LilyPond:
 @code{banjo-c-tuning} (gCGBD), @code{banjo-modal-tuning} (gDGCD),
 @code{banjo-open-d-tuning} (aDF#AD) and @code{banjo-open-dm-tuning}
 (aDFAD).
 
-These tunings may be converted to four string banjo tunings using the
+These tunings may be converted to four-string banjo tunings using the
 @code{four-string-banjo} function:
 
 @example
@@ -568,3 +1320,4 @@ The file @file{scm/@/output@/-lib@/.scm} contains predefined banjo tunings.
 
 
 
+