@c \version "2.11.51"
+
@node Simultaneous notes
@section Simultaneous notes
@menu
* Chorded notes::
-* Parallel notes::
* Clusters::
@end menu
+
@node Chorded notes
@unnumberedsubsubsec Chorded notes
<c e g>2 <c f a>4-> <e g c>-.
@end lilypond
+Relative mode can be used for pitches in chords; the preceding pitch
+into the same chord is still used as a reference for relative pitches,
+but when a chord is completed, the reference pitch for relative mode
+is the first note of this chord --not the last note of the chord.
+
For more information about chords, see @ref{Chord notation}.
@seealso
@code{<g a>8 <e a>8}.
@end ignore
-@node Parallel notes
-@unnumberedsubsubsec Parallel notes
-
-@ignore
-Pieces of music having the same rhythm form chords when
-combined in parallel into the same @code{Voice} context by enclosing
-them into double angle brackets:
-@end ignore
-
-Parallel pieces of music can be combined into a single
-@code{Voice} context, thus forming chords if they have the same
-rhythm. To achieve this, enclose them in a simultaneous music
-construction:
-
-@lilypond[quote,relative=2,verbatim]
-\new Voice <<
- { e4 f8 d e16 f g8 d4 }
- { c4 d8 b c16 d e8 b4 }
->>
-@end lilypond
-
-@seealso
-
-Learning Manual:
-@rlearning{Voices contain music}.
-
-Snippets:
-@rlsr{Simultaneous notes}.
-
-@knownissues
-
-This method leads to strange beamings and warnings if the pieces of
-music do not have the same rhythm.
@node Clusters
@unnumberedsubsubsec Clusters
themselves. Separate clusters would need a separating rest between
them.
+
@node Multiple voices
@subsection Multiple voices
multiple staves.
@menu
-* Collision resolution::
+* Single-staff polyphony::
* Voice styles::
+* Collision resolution::
* Automatic part combining::
* Writing music in parallel::
@end menu
+
+@node Single-staff polyphony
+@unnumberedsubsubsec Single-staff polyphony
+
+@c Already reordered as Carl suggested --FV
+The basic structure of code needed to achieve multiple, independent
+voices in a single staff is illustrated in the following example:
+
+@lilypond[quote,relative=3,verbatim]
+\new Staff <<
+ \new Voice = "first"
+ { \voiceOne r8 r16 g e8. f16 g8[ c,] f e16 d }
+ \new Voice= "second"
+ { \voiceTwo d16 c d8~ d16 b c8~ c16 b c8~ c16 b8. }
+>>
+@end lilypond
+
+Here, voices are instantiated explicitly and are given a name. The
+@code{\voiceOne} ... @code{\voiceFour} commands set up the voices so
+that first and third voices get stems up, second and fourth voices get
+stems down, third and fourth voice note heads are horizontally
+shifted, and rests in the respective voices move to avoid collisions.
+
+Using the @code{\oneVoice} command, we can make a voice to be into the
+same @code{Voice} context before and after a temporary polyphonic
+passage. For example:
+
+@example
+<< @{ \voiceOne ... @} \new Voice @{ \voiceTwo ... @} >> \oneVoice
+@end example
+
+This construct keeps a voice alive throughout the polyphonic section.
+Using the name given when created, this allows lyrics to be assigned
+to one consistent voice.
+
+@lilypond[quote, verbatim, relative=2]
+<<
+ \new Voice = "melody" {
+ a4
+ <<
+ {
+ \voiceOne
+ g f
+ }
+ \new Voice {
+ \voiceTwo
+ e d
+ }
+ >>
+ \oneVoice
+ e
+ }
+ \new Lyrics \lyricsto "melody" {
+ This is my song.
+ }
+>>
+@end lilypond
+
+The @code{<<@{...@} \\ @{...@}>>} construction can be used as a
+simplified method, where the two (or more) voices are separated by
+double backslashes. Our first example could be typeset as follows:
+
+@lilypond[quote,relative=3,verbatim]
+<<
+ { r8 r16 g e8. f16 g8[ c,] f e16 d }
+ \\
+ { d16 c d8~ d16 b c8~ c16 b c8~ c16 b8. }
+>>
+@end lilypond
+
+This syntax is simpler and can be used where it does not care that
+temporary voices are created and then discarded. These implicitly
+created voices are given the settings equivalent to the effect of the
+@code{\voiceOne} ... @code{\voiceFour} commands, in the order in which
+they appear in the code. In the following example, the intermediate
+voice has stems up, therefore we enter it in the third place, so it
+becomes voice three which has the stems up as desired.
+
+@lilypond[quote,relative=3,verbatim]
+<<
+ { r8 g g g g f16 es f8 d }
+ \\
+ { es,8 r es r d r d r }
+ \\
+ { d'8 s c s bes s a s }
+>>
+@end lilypond
+
+Spacing rests are often used to avoid too many rests, as seen in the
+example above.
+
+In all but simplest works it is advised to create explicit
+@code{Voice} contexts using the @code{\new} and @code{\context}
+commands as it is explained in @rlearning{Contexts and engravers} and
+@rlearning{Explicitly instantiating voices}.
+
+In the special case that we want to typeset parallel pieces of music
+that have the same rhythm, we can combine them into a single
+@code{Voice} context, thus forming chords. To achieve this, enclose
+them in a simple simultaneous music construction and make it to be an
+explicit voice:
+
+@lilypond[quote,relative=2,verbatim]
+\new Voice <<
+ { e4 f8 d e16 f g8 d4 }
+ { c4 d8 b c16 d e8 b4 }
+>>
+@end lilypond
+
+This method leads to strange beamings and warnings if the pieces of
+music do not have the same rhythm.
+
+@predefined
+
+@funindex \voiceOne
+@code{\voiceOne},
+@funindex \voiceTwo
+@code{\voiceTwo},
+@funindex \voiceThree
+@code{\voiceThree},
+@funindex \voiceFour
+@code{\voiceFour},
+@funindex \oneVoice
+@code{\oneVoice}.
+
+@seealso
+
+Learning Manual:
+@rlearning{Voices contain music},
+@rlearning{Explicitly instantiating voices}.
+
+Notation Reference:
+@ref{Percussion staves}.
+
+Snippets:
+@rlsr{Simultaneous notes}.
+
+
+@node Voice styles
+@unnumberedsubsubsec Voice styles
+
+@cindex voice styles
+@cindex styles, voice
+@cindex coloring voices
+
+Voices may be given distinct colors and shapes, allowing them to be
+easily identified:
+
+@lilypond[quote,relative=2,verbatim]
+<<
+ { \voiceOneStyle d4 c2 b4 }
+ \\
+ { \voiceTwoStyle e,2 e }
+ \\
+ { \voiceThreeStyle b2. c4 }
+ \\
+ { \voiceFourStyle g'2 g }
+>>
+@end lilypond
+
+To revert the standard presentation, the @code{\voiceNeutralstyle}
+command is used.
+
+@predefined
+
+@funindex \voiceOneStyle
+@code{\voiceOneStyle},
+@funindex \voiceTwoStyle
+@code{\voiceTwoStyle},
+@funindex \voiceThreeStyle
+@code{\voiceThreeStyle},
+@funindex \voiceFourStyle
+@code{\voiceFourStyle},
+@funindex \voiceNeutralStyle
+@code{\voiceNeutralStyle}.
+
+@seealso
+
+Learning Manual:
+@rlearning{I'm hearing Voices},
+@rlearning{Other sources of information}.
+
+Snippets:
+@rlsr{Simultaneous notes}.
+
+
@node Collision resolution
@unnumberedsubsubsec Collision resolution
Notes are only merged if they have opposing stem directions (i.e., in
@code{Voice} 1 and 2).
-
@cindex multiple voices
@cindex polyphonic music
@cindex shifting voices
@funindex \mergeDifferentlyHeadedOff
@code{\mergeDifferentlyHeadedOff}.
-@funindex \oneVoice
-@code{\oneVoice},
-@funindex \voiceOne
-@code{\voiceOne},
-@funindex \voiceTwo
-@code{\voiceTwo},
-@funindex \voiceThree
-@code{\voiceThree},
-@funindex \voiceFour
-@code{\voiceFour}.
-
-
@funindex \shiftOn
@code{\shiftOn},
@funindex \shiftOnn
@rinternals{NoteCollision},
@rinternals{RestCollision}.
-
@knownissues
When using @code{merge-differently-headed} with an upstem eighth
half note head symbol.
@c investigate! Sometimes it works, sometimes not. --FV
-It is not clear in which circumpstances you can succesfully merge
-different note heads that are at the same time differently dotted.
+The requirements for successfully merging different note heads that
+are at the same time differently dotted are not clear.
There is no support for chords where the same note occurs with
different accidentals in the same chord. In this case, it is
recommended to use enharmonic transcription, or to use special
cluster notation (see @ref{Clusters}).
-@node Voice styles
-@unnumberedsubsubsec Voice styles
-
-@cindex voice styles
-@cindex styles, voice
-@cindex coloring voices
-
-Voices may be given distinct colors and shapes, allowing them to be
-easily identified:
-
-@lilypond[quote,relative=2,verbatim]
-<<
- {
- a1
- \voiceOneStyle
- f2 g
- \voiceNeutralStyle
- a1
- } \\ {
- f1
- \voiceTwoStyle
- f4 f2 e4
- \voiceNeutralStyle
- f1
- }
->>
-@end lilypond
-
-@predefined
-
-@funindex \voiceOneStyle
-@code{\voiceOneStyle},
-@funindex \voiceTwoStyle
-@code{\voiceTwoStyle},
-@funindex \voiceThreeStyle
-@code{\voiceThreeStyle},
-@funindex \voiceFourStyle
-@code{\voiceFourStyle},
-@funindex \voiceNeutralStyle
-@code{\voiceNeutralStyle}.
-
-@seealso
-
-Lerning Manual:
-@rlearning{I'm hearing Voices}.
-
-Snippets:
-@rlsr{Simultaneous notes}.
@node Automatic part combining
@unnumberedsubsubsec Automatic part combining
@snippets
-Parts may be merged without printing text:
-
-@lilypond[quote,verbatim]
-\new Staff <<
- \set Staff.printPartCombineTexts = ##f
- \partcombine
- \relative g' { g a( b) r }
- \relative g' { g r4 r f }
->>
-@end lilypond
-
-The printed text may be changed:
-
-@lilypond[quote,verbatim]
-\new Staff <<
- \set Score.soloText = #"girl"
- \set Score.soloIIText = #"boy"
- \set Score.aDueText = #"together"
- \partcombine
- \relative g' { g4 g r r a2 g }
- \relative g' { r4 r a( b) a2 g }
->>
-@end lilypond
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{combining-two-parts-on-the-same-staff.ly}
+@lilypondfile[verbatim,lilyquote,texidoc,doctitle]
+{changing-partcombine-texts.ly}
@seealso
Snippets:
@rlsr{Simultaneous notes}.
-
Internals Reference:
@rinternals{PartCombineMusic},
@rinternals{Voice}.
@c IIRC in users list someone pointed out more issues. TODO: lookup FV
+
@node Writing music in parallel
@unnumberedsubsubsec Writing music in parallel
be of the same length.}
@lilypond[quote,verbatim]
-\parallelMusic #'(voiceA voiceB) {
+\parallelMusic #'(voiceA voiceB voiceC) {
% Bar 1
- r8 g'16[ c''] e''[ g' c'' e''] r8 g'16[ c''] e''[ g' c'' e''] |
- c'2 c'2 |
+ r8 g'16 c'' e'' g' c'' e'' r8 g'16 c'' e'' g' c'' e'' |
+ r16 e'8.~ e'4 r16 e'8.~ e'4 |
+ c'2 c'2 |
% Bar 2
- r8 a'16[ d''] f''[ a' d'' f''] r8 a'16[ d''] f''[ a' d'' f''] |
- c'2 c'2 |
+ r8 a'16 d'' f'' a' d'' f'' r8 a'16 d'' f'' a' d'' f'' |
+ r16 d'8.~ d'4 r16 d'8.~ d'4 |
+ c'2 c'2 |
+
}
\new StaffGroup <<
- \new Staff \voiceA
- \new Staff \voiceB
+ \new Staff << \voiceA \\ \voiceB >>
+ \new Staff { \clef bass \voiceC }
>>
@end lilypond
@code{voiceA} ignore the notes in @code{voiceB}.
@lilypond[quote,verbatim]
-\parallelMusic #'(voiceA voiceB) {
+\parallelMusic #'(voiceA voiceB voiceC) {
% Bar 1
r8 g16 c e g, c e r8 g,16 c e g, c e |
+ r16 e8.~ e4 r16 e8.~ e4 |
c2 c |
% Bar 2
r8 a,16 d f a, d f r8 a,16 d f a, d f |
+ r16 d8.~ d4 r16 d8.~ d4 |
c2 c |
+
}
\new StaffGroup <<
- \new Staff \relative c'' \voiceA
- \new Staff \relative c' \voiceB
+ \new Staff << \relative c'' \voiceA \\ \relative c' \voiceB >>
+ \new Staff \relative c' { \clef bass \voiceC }
>>
@end lilypond
projects / lilypond.git / blobdiff