Guide, node Updating translation committishes..
@end ignore
-@c \version "2.13.36"
+@c \version "2.13.46"
@node Fretted string instruments
@section Fretted string instruments
@cindex tablature, predefined string tunings
@cindex fretted instruments, predefined string tunings
@cindex predefined string tunings for fretted instruments
+@cindex tablature, violin
+@cindex tablature, viola
+@cindex tablature, cello
+@cindex tablature, bass
+@cindex tablature, double bass
@funindex StringTunings
@code{stringTunings} property.
LilyPond comes with predefined string tunings for banjo, mandolin,
-guitar, bass guitar and ukulele. LilyPond automatically sets
+guitar, bass guitar, ukulele, violin, viola, cello, and double bass.
+LilyPond automatically sets
the correct transposition for predefined tunings. The following
example is for bass guitar, which sounds an octave lower than
written.
is the standard EADGBE tuning. Some other predefined tunings are
@code{guitar-open-g-tuning}, @code{mandolin-tuning} and
@code{banjo-open-g-tuning}. The predefined string tunings
-are found in @file{scm/tablature.scm}.
+are found in @file{ly/string-tuning-init.ly}.
+
+@funindex contextStringTunings
+@funindex \contextStringTunings
+@cindex tablature, custom string tunings
+@cindex custom string tunings
+
+Any desired string tuning can be created. The
+@code{\contextStringTuning} function can be
+used to define a string tuning and set it as the
+@code{stringTunings} for the current context.
+@code{\contextStringTuning} takes two arguments: the
+symbol in which the string tuning, and a chord construct
+that defines the pitches of each string in the tuning.
+The chord construct must be in absolute octave mode,
+see @ref{Absolute octave entry}. The string
+with the highest number (generally the lowest string) must
+come first in the chord. 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'}:
+
+@lilypond[quote,verbatim]
+
+mynotes = {
+ c'4 e' g' c'' |
+ e''4 g'' b'' c'''
+}
+
+<<
+ \new Staff {
+ \clef treble
+ \mynotes
+ }
+ \new TabStaff {
+ \contextStringTuning #'custom-tuning <c' g' d'' a''>
+ \mynotes
+ }
+>>
+@end lilypond
+
+The @code{stringTunings} property is also used by
+@code{FretBoards} to calculate automatic fret diagrams.
+
+@funindex makeStringTuning
+@funindex \makeStringTuning
+
+String tunings are used as part of the hash key
+for predefined fret diagrams
+(see @ref{Predefined fret diagrams}). The @code{\makeStringTuning}
+function is used to create a string tuning without setting the
+@code{stringTunings} property in the current context. The
+arguments to @code{\makeStringTuning} are the symbol to be
+used for the new string tuning and a chord construct used
+to define the tuning.
+The previous example could also be written as follows:
+
+@lilypond[quote,verbatim]
+\makeStringTuning #'custom-tuning <c' g' d'' a''>
-A string tuning is a Scheme list of string pitches,
+mynotes = {
+ c'4 e' g' c'' |
+ e''4 g'' b'' c'''
+}
+
+<<
+ \new Staff {
+ \clef treble
+ \mynotes
+ }
+ \new TabStaff {
+ \set TabStaff.stringTunings = #custom-tuning
+ \mynotes
+ }
+>>
+@end lilypond
+
+Internally, 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.
-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.
-
-LilyPond automatically calculates the number of strings in the
-@code{TabStaff} as the number of elements in @code{stringTunings}.
-
-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'}:
+A string pitch in a string tuning list is a LilyPond pitch
+object. Pitch objects are created with the Scheme function
+@code{ly:make-pitch} (see @ref{Scheme functions}).
+If desired, a string tuning can be created as a Scheme
+literal. The example below recreates the examples above,
+but the string tuning is not saved as a separate object:
@lilypond[quote,verbatim]
mynotes = {
\mynotes
}
\new TabStaff {
- \set TabStaff.stringTunings = #'(21 14 7 0)
+ \set TabStaff.stringTunings = #`(,(ly:make-pitch 1 5 0)
+ ,(ly:make-pitch 1 1 0)
+ ,(ly:make-pitch 0 4 0)
+ ,(ly:make-pitch 0 0 0))
\mynotes
}
>>
@end lilypond
+LilyPond automatically calculates the number of strings in the
+@code{TabStaff} and the number of strings in an automatically
+calculated @code{FretBoard} as the number of elements
+in @code{stringTunings}.
+
@cindex moderntab clef
@cindex clef, moderntab
@cindex clef, tab
The modern tab clef supports tablatures from 4 to 7 strings.
@seealso
+Notation Reference:
+@ref{Absolute octave entry},
+@ref{Predefined fret diagrams},
+@ref{Scheme functions}.
+
Installed Files:
+@file{ly/string-tuning-init.ly}
@file{scm/tablature.scm}.
Snippets:
projects / lilypond.git / blobdiff