@finalout
@node Top
-@top New features in 2.16 since 2.14
+@top New features in 2.18 since 2.16
@allowcodebreaks false
@end ignore
@item
-There is a new @code{define-scheme-function} command in analogy to
-@code{define-music-function} which can be used to define functions
-evaluating to Scheme expressions while accepting arguments in Lilypond
-syntax.
+Grob @code{OctavateEight} was renamed to @code{ClefModifier}.
+Related context properties were renamed from @code{xxxOctavationyyy}
+to @code{xxxTranspositionyyy}.
@item
-The construct @code{#@{ @dots{} #@}} can now be used not just for
-constructing sequential music lists, but also for single music events,
-void music expressions, post events, markups (mostly freeing users from
-having to use the @code{markup} macro), markup lists, number
-expressions, context definitions and modifications, and a few other
-things. If it encloses nothing or only a single music event, it no
-longer returns a sequential music list but rather a void music
-expression or just the music event itself, respectively.
+There is a new @code{\absolute} command explicitly marking music
+as being entered in absolute pitch. While this has been the
+default previously, an explicit @code{\absolute} also prevents
+reinterpretation when the passage is placed inside of
+@code{\relative}:
+@lilypond[verbatim,quote]
+\relative c { c'4 \absolute { f'' g'' } c }
+@end lilypond
@item
-New command-line option @option{--loglevel=@var{level}} to control how much output
-LilyPond creates. Possible values are ERROR, WARN, BASIC_PROGRESS, PROGRESS, DEBUG.
+When @code{\relative} is used without an explicit reference pitch,
+the reference pitch now is the middle of the first octave, making
+the first entered pitch indistinguishable from absolute pitch.
+Previously, omitting the reference pitch would have lead to a
+default of @code{c'}. Since that choice was somewhat arbitrary,
+recommended usage was to always specify the reference pitch.
@item
-@code{\set \once} now correctly resets the property value to the previous value.
-@lilypond[fragment,quote,relative=2]
- \set fingeringOrientations = #'(left)
- <e-1>4
- \once \set fingeringOrientations = #'(right)
- <e-1>
- <e-1>-"left"
+A new command @code{\single} can be used for converting a property
+override into a tweak to be applied on a single music expression:
+
+@lilypond[quote,verbatim,relative=2]
+<a \single\voiceTwoStyle e' a>1
@end lilypond
+@item
+Two ways of letting graphical objects not appear in the output are
+overriding its @code{transparent} property with @code{#t}
+(retaining the original spacing) or overriding its @code{stencil}
+property with @code{#f} (not using any space at all). Those two
+operations now have the shorthands @code{\hide} and @code{\omit},
+respectively. They can either be given a music expression to
+tweak, or the name of a graphical object for which an override
+should be created (for specifying both, use @code{\single} on the
+override form):
+
+@lilypond[quote,verbatim]
+\new Staff \with { \omit Clef }
+\relative c'' <a e' \hide a>1
+@end lilypond
@item
-The alignment of dynamic spanners (hairpins, text crescendo, etc.) is now
-automatically broken if a different direction is explicitly given.
-@lilypond[fragment,quote,relative=2]
-c4_\< c c^\> c c1_\p
+A new command @code{\temporary} can be applied to overrides in
+order to not have them replace previous property settings. If a
+@code{\revert} is applied to the same property subsequently, the
+previous setting reappears:
+
+@lilypond[quote,verbatim,relative=2]
+\override NoteHead.color = #red c4
+\override NoteHead.color = #green d
+\revert NoteHead.color e2
+\override NoteHead.color = #red c4
+\temporary\override NoteHead.color = #green d
+\revert NoteHead.color e
+\revert NoteHead.color c
@end lilypond
+This is mainly useful for writing music functions that need to
+have some property changed just for the duration of the function.
+
+@item
+@code{\tag}, @code{\removeWithTag}, and @code{\keepWithTag} can
+now accept a list of symbols rather than just a single symbol for
+marking, removing, and keeping music with any of multiple tags.
+This is particularly important for @code{\keepWithTag} since one
+cannot achieve the same effect by using multiple consecutive
+@code{\keepWithTag} commands.
+
+@item
+The @samp{-d old-relative} option has been removed. Not actually
+accessible from the command line any more, its remaining use was
+for interpretating @code{\relative} in LilyPond files converted
+automatically from version@tie{}1.8 or older. It is unclear how
+much of this was actually still operative.
+
+@item
+The meaning of @code{instrumentTransposition} has been reversed.
+After
+@example
+\set instrumentTransposition = #@{ b #@}
+@end example
+a written @code{c'} now sounds like @code{b}. Previously, this
+would have been the other way round. This and the following change
+should make dealing with transposing instruments more
+straightforward.
+
+@item
+The music generated by @code{\set} and @code{\override} commands
+is no longer affected by @code{\transpose}. The main consequence
+is that @code{\transpose} will transpose audible/@/concert pitch and
+printed pitch by the same amount even when the transposed music
+contains @code{\transposition}. Previously,
+@example
+\transpose c' f' \transposition bes'
+@end example
+was equivalent to @code{\transposition f'}. Now it stays
+equivalent to @code{\transposition bes'}.
@item
-Appoggiaturas and acciaccaturas now also work inside a slur, not only inside
-a phrasing slur. Also, a function @code{\slashedGrace} was added that does
-does not use a slur from the acciaccatura note.
-@lilypond[fragment,relative=2]
-c4( \appoggiatura e8 d4 \acciaccatura e8 d4 \slashedGrace e8 c4)
+When checking for collisions, LilyPond no longer treats objects as
+rectangles. Instead, the actual shape of objects is approximated
+using an integral-like approach. This generally results in more
+even and snug positioning of objects and systems:
+
+@lilypond[relative=1]
+#(ly:set-option 'debug-skylines #t)
+\dynamicUp
+c'4\f a4\f d\f( f)
+a,4\< c c c\!
+d4-.\downbow a4^"r'venu..." c \tempo "T1" e
@end lilypond
+Previously, the above snippet looked like this:
+
+@lilypond[relative=1]
+#(ly:set-option 'debug-skylines #t)
+\override Hairpin #'vertical-skylines = #'()
+\override DynamicText #'vertical-skylines = #'()
+\override TextScript #'vertical-skylines = #'()
+\override Score.MetronomeMark #'vertical-skylines = #'()
+\override Staff.Clef #'vertical-skylines = #'()
+\dynamicUp
+c'4\f a4\f d\f( f)
+a,4\< c c c\!
+d4-.\downbow a4^"r'venu..." c \tempo "T1" e
+@end lilypond
+
+Affected objects include @code{Accidentals}, @code{Beams}, @code{Clefs},
+@code{Dynamics}, @code{FiguredBass}, @code{Flags}, @code{Glissandos},
+@code{Lyrics}, @code{MetronomeMarks}, @code{OttavaBrackets},
+@code{Pedals}, @code{RehearsalMarks}, @code{Rests}, @code{Scripts},
+@code{TextScripts}, @code{Ties}, @code{Tuplets} and @code{VoltaBrackets}.
@item
-To suppress the line on a crescendo text spanner (and other similar spanners),
-LilyPond now fully supports the @code{#'style = #'none} property.
-@lilypond[fragment,quote,relative=2]
-\override DynamicTextSpanner #'style = #'none
-c4\cresc c c g, c'\p
+Tuplets are now created with the @code{\tuplet} command, which
+takes a fraction @code{@var{t}/@var{n}} to specify that @var{t}
+notes are played in the time usually allowed for @var{n}. One
+@code{\tuplet} command can create several tuplet groups if their
+duration is typed after the fraction.
+@lilypond[quote,verbatim,relative=2]
+\tuplet 3/2 { c8 d e } \tuplet 3/2 { f e d } c2
+\tuplet 3/2 4 { c8 d e f e d } c2
@end lilypond
+The @code{\times} command with its inverted fraction order
+@code{@var{n}/@var{t}} is still available.
@item
-LilyPond.app now supports MacOS X 10.7, thanks Christian Hitz!
+Introducing two new markup-commands; @code{\draw-dashed-line} and
+@code{\draw-dotted-line}.
+
+@noindent
+The dashed-line extends to the whole length given by @var{dest}, if
+@code{full-length} is set to @code{#t} (this is the default) without any
+space at the beginning or end. @code{off} will then be altered to fit.
+To insist on the given (or default) values of @code{on}, @code{off} use
+@code{\override #'(full-length . #f)}. Manual settings for @code{on},
+@code{off} and @code{phase} are possible.
+
+@noindent
+The dotted-line always extends to the whole length given by @var{dest},
+without any space at the beginning or end. Manual settings for
+@code{off} are possible to get larger or smaller space between the dots.
+The given (or default) value of @code{off} will be altered to fit the
+line-length.
+
+@lilypond[verbatim,quote]
+\markup {
+ \draw-dashed-line #'(5.1 . 2.3)
+ \override #'(on . 0.3)
+ \override #'(off . 0.5)
+ \draw-dashed-line #'(5.1 . 2.3)
+ \draw-dotted-line #'(5.1 . 2.3)
+ \override #'(thickness . 2)
+ \override #'(off . 0.2)
+ \draw-dotted-line #'(5.1 . 2.3)
+}
+@end lilypond
@item
-Glissandi can now span multiple lines.
+Starting with version@tie{}2.17.10, error messages or the
+@code{textedit} @acronym{URI} used for point-and-click
+functionality specify column numbers starting with@tie{}1 rather
+than@tie{}0. The byte offset (also part of @code{textedit}
+@acronym{URI}s) still starts at@tie{}0.
+
+@item
+The @code{\clef} command supports optional transposition:
+@lilypond[verbatim,quote,relative=1]
+\clef "treble_(8)"
+c2 c
+\clef "bass^[15]"
+c2 c
+@end lilypond
+
+@item
+The LilyPond syntax of dot-separated words @code{Voice.Accidental}
+has been made interchangeable with @code{#'(Voice Accidental)}, a
+Scheme list of symbols. As one result, code like
+@example
+\override Voice.TextSpanner #'(bound-details left text) = "rit."
+@end example
+is now equivalent to
+@example
+\override Voice.TextSpanner bound-details.left.text = "rit."
+@end example
+or even
+@example
+\override #'(Voice TextSpanner) bound-details.left.text = "rit."
+@end example
+
+@item
+Grob and grob property path no longer need to be specified as two
+separate arguments to commands like @samp{\override} and
+@code{\revert}, allowing for the syntax
+@example
+\override Voice.TextSpanner.bound-details.left.text = "rit."
+@end example
+Since complementary music functions like @samp{\overrideProperty}
+cannot support forms with and without separating space at the same
+time, using a single dotted path is now the preferred form.
+Specifying grob path and grob property path separately, currently
+still supported with @samp{\override} and @samp{\revert} for
+compatibility reasons, is deprecated.
+
+@item
+Due to words now being accepted as symbol function arguments, the
+interfaces of @samp{\accidentalStyle}, @samp{\alterBroken},
+@samp{\footnote} and @samp{\tweak} had to be redesigned where
+optional symbol arguments were involved. Please check the
+respective music function documentation for details.
+
+@item
+Several commands now accept symbol lists (conveniently entered as
+dot-separated words) for various kinds of arguments. These
+include @samp{\accidentalStyle}, @samp{\alterBroken},
+@samp{\footnote}, @samp{\hide}, @samp{\omit},
+@samp{\overrideProperty}, @samp{\shape}, and @samp{\tweak}.
+
+@item
+The bar line user interface has changed. Bar glyphs now resemble the
+appearance of the bar line, so a left repeat sign has to be coded
+as @code{.|:}. The command @code{\defineBarLine} provides an easy way
+to define additional bar line styles.
+
+@item
+Accidentals in the key signature may be printed in octaves other
+than their traditional positions, or in multiple octaves.
+@lilypond[quote,relative=0]
+\override Staff.KeySignature #'flat-positions = #'((-5 . 5))
+\override Staff.KeyCancellation #'flat-positions = #'((-5 . 5))
+\clef bass \key es\major es g bes d
+\clef treble \bar "||" \key es\major es g bes d
+\override Staff.KeySignature #'sharp-positions = #'(2)
+\bar "||" \key d\major b fis b2
+@end lilypond
@end itemize
@ifhtml
For older news, go to
+@uref{http://lilypond.org/doc/v2.16/Documentation/changes/},
@uref{http://lilypond.org/doc/v2.14/Documentation/changes/},
-@uref{http://lilypond.org/doc/v2.12/Documentation/topdocs/NEWS.html},
or @uref{../,go back} to the Documentation index.
projects / lilypond.git / blobdiff