@setfilename lilypond-changes.info
@settitle LilyPond Changes
+@include macros.itexi
+
@ifhtml
@macro inputfileref{DIR,NAME}
@uref{../../\DIR\/collated-files.html#\NAME\,@file{\DIR\/\NAME\}}@c
@finalout
@node Top
-@top New features in 2.13 since 2.12
-
-@ifhtml
-This document is also available in @uref{changes.pdf,PDF}. It is part of
-the @uref{lilypond/manuals.html,LilyPond Documentation}.
-@end ifhtml
+@top New features in 2.16 since 2.14
+@allowcodebreaks false
-
-
-@itemize @bullet
+@itemize
@ignore
HINTS
+* add new items at the top
+
* only show verbatim input for syntax/input changes
* try to be as brief possible in those cases
* only show user-visible changes.
@end ignore
+@item
+Scheme expressions inside of embedded Lilypond (@code{#@{@dots{}#@}})
+are now executed in lexical closure of the surrounding Scheme code.
+@code{$} is no longer special in embedded Lilypond. It can be used
+unconditionally in Lilypond code for immediate evaluation, similar to
+how @code{ly:export} could previously be used. @code{ly:export} has
+been removed. As a consequence, @code{#} is now free to delay
+evaluation of its argument until the parser actually reduces the
+containing expression, greatly reducing the potential for premature
+evaluation.
@item
-The Unicode Bidirectional Algorithm is now fully supported for
-single-line markup due to enhanced integration with Pango.
+Support for jazz-like chords has been improved: Lydian and altered
+chords are recognised; separators between chord modifiers are now
+treated independently of separators between ``slash'' chords and their
+bass notes (and by default, slashes are now only used for the latter
+type of separator); additional pitches are no longer prefixed with
+``add'' by default; and the ``m'' in minor chords can be customized.
+@ruser{Customizing chord names} for more information.
@item
-LilyPond is now licensed under the GNU GPL v3+.
@item
-In tablature, frets can be indicated with labels other than numbers:
+The @code{\markuplines} command has been renamed to @code{\markuplist}
+for a better match with its semantics and general Lilypond
+nomenclature.
-@lilypond[verbatim,quote,relative=1]
-\new TabStaff
-\with {
- stringTunings = #'(17 14 9 5 2 -3)
- tablatureFormat = #fret-letter-tablature-format
-}
-\new TabVoice {
- \set fretLabels = #`(,(markup #:with-color red "a")
- "b"
- ,(markup #:italic #:smaller "c"))
- <f d>4. <bes>8 <g e>4
-}
-@end lilypond
+@item
+The interface for specifying string tunings in tablature has been
+simplified considerably.
@item
-Layout objects can be printed over a white background, which whites-out objects
-in lower layers which lie beneath:
-
-@lilypond[verbatim,quote,relative=1]
-\time 3/4
-\override Staff.StaffSymbol #'layer = #4
-\once \override Tie #'layer = #2
-b'2.~
-\once \override Staff.TimeSignature #'whiteout = ##t
-\once \override Staff.TimeSignature #'layer = #3
-\time 5/4
-b4
+Beams can now have their slopes preserved over line breaks.
+@lilypond[fragment,quote,relative=2]
+\override Beam #'breakable = ##t
+a8[ b c d e f g \bar "" \break f e d c b a]
+\once \override Beam #'positions = #beam::align-with-broken-parts
+a8[ b c d e f g \bar "" \break f e d c b a]
+\once \override Beam #'positions = #beam::slope-like-broken-parts
+a8[ b c d e f g \bar "" \break f e d c b a]
@end lilypond
+To do this, several callback functions are now deprecated.
+@itemize
+@item @code{ly:beam::calc-least-squares-positions}
+@item @code{ly:beam::slope-damping}
+@item @code{ly:beam::shift-region-to-valid}
+@end itemize
+Furthermore, @code{ly:beam::quanting} now takes an additional argument
+to help calculations over line breaks. All of these functions are now
+automatically called when setting the @code{positions} parameter.
@item
-Chords can be repeated using the @code{q} shortcut:
-
-@lilypond[verbatim,quote,relative=2]
-<c e g>8.-^ q16 q4-^
-@end lilypond
+In function arguments music, markups and Scheme expressions (as well
+as several other syntactic entities) have become mostly
+interchangeable and are told apart only by evaluating the respective
+predicate.
@item
-Paper margin defaults, as specified in @file{ly/@/paper@/-defaults@/-init@/.ly}, apply
-to the default paper size (a4) and are automatically scaled according to the
-paper size chosen.
+Music functions (and their close relatives) can now be defined with
+optional arguments.
@item
-All combinations of @code{left-margin}, @code{right-margin} and
-@code{line-width} work now. There is no more need to set @code{line-width}
-manually unless you explicitly want to.
+For defining commands executed only for their side-effects,
+@code{define-void-function} is now available.
@item
-Support for using an alternative music font, such as Gonville, is now
-added.
+There is a new @code{define-event-function} command in analogy to
+@code{define-music-function} that can be used for defining music
+functions acting as events without requiring a direction specifier
+(@code{-}, @code{^}, or @code{_}) placed before them.
+@lilypond[quote,verbatim,raggedright]
+dyn=#(define-event-function (parser location arg) (markup?)
+ (make-dynamic-script arg))
+\relative c' { c\dyn pfsss }
+@end lilypond
@item
-In addition to the existing @code{\hspace} markup command,
-a new @code{\vspace} command has been added to provide an easy
-and flexible way to add vertical space in markups.
+A list of ASCII aliases for special characters can be included.
+@lilypond[quote,verbatim]
+\paper {
+ #(include-special-characters)
+}
+\markup "• † ©right; &OE; &ss; ¶"
+@end lilypond
@item
-The direction of manual beams can be set with @code{^[} and @code{_[}.
+There is a new @code{define-scheme-function} command in analogy to
+@code{define-music-function} that can be used to define functions
+evaluating to Scheme expressions while accepting arguments in Lilypond
+syntax.
@item
-A version of the breve note head has been added with two vertical lines on each side.
-@lilypond[quote,relative=2]
-\time 4/2
-\override Staff.NoteHead #'style = #'altdefault
-c\breve | b\breve
-@end lilypond
+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.
@item
-Instrument names and vocal names now take into account the extent of
-system start delimiters in other staves for their positioning,
-resulting in improved default alignment for left-, center- and
-right-aligned names.
-@lilypond[quote,indent=18\mm]
-<<
- \new StaffGroup <<
- \new GrandStaff <<
- \new Staff {
- \set Staff.instrumentName = #"Piccolo"
- c''1
- }
- \new Staff {
- \set Staff.instrumentName = #"Flute"
- c''1
- }
- >>
- \new Staff {
- \set Staff.instrumentName = #"Bassoon"
- \clef tenor
- c'1
- }
- >>
- \new PianoStaff <<
- \set PianoStaff.instrumentName = #"Piano"
- \context Staff = "up" {
- c'1
- }
- \context Staff = "down" {
- \clef bass
- c1
- }
- >>
->>
-@end lilypond
+New command-line option @option{--loglevel=@var{level}} to control how much output
+LilyPond creates. Possible values are ERROR, WARN, BASIC_PROGRESS, PROGRESS, DEBUG.
@item
-Braces in markup can now be selected by point size using the markup commands
-@code{\left-brace} and @code{\right-brace}.
-@lilypond[quote]
-\markup {
- \left-brace #35
- \hspace #2
- \right-brace #45
-}
+@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"
@end lilypond
-@item
-Intermediate .ps files which are created by LilyPond
-during compilation are now deleted by default. To keep them,
-add the following line to your input files:
-@example
-#(ly:set-option 'delete-intermediate-files #f)
-@end example
@item
-Dashed and dotted slurs, phrasing slurs, and ties
-have been made variable thickness, and
-partially dashed slurs are now available:
-@lilypond[quote,relative=2]
-\slurDashed
-c4( d e f) |
-\slurDotted
-g4( f e d) |
-\slurHalfDashed
-c4( d e f)
+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
@end lilypond
+
@item
-An eyeglasses markup was added, indicating strongly to look at the
-conductor for instructions:
-@lilypond[quote,relative=2]
-\mark \markup { \eyeglasses }
-c4_\markup { \eyeglasses }
+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,quote,relative=2]
+c4( \appoggiatura e8 d4 \acciaccatura e8 d4 \slashedGrace e8 c4)
@end lilypond
+
@item
-A snap-pizzicato (also known as Bartok-pizzicato) articulation was added:
-@lilypond[quote,relative=2]
-c4\snappizzicato
+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
@end lilypond
@item
-Tuplet number formatting functions are now available to print other fractions
-and to add notes to the number or fraction:
-@lilypond[quote,relative=2]
-\once \override TupletNumber #'text =
- #(tuplet-number::non-default-tuplet-denominator-text 7)
-\times 2/3 { c4. c4. c4. c4. }
-
-\once \override TupletNumber #'text =
- #(tuplet-number::non-default-tuplet-fraction-text 12 7)
-\times 2/3 { c4. c4. c4. c4. }
-\once \override TupletNumber #'text =
- #(tuplet-number::append-note-wrapper
- (tuplet-number::non-default-tuplet-fraction-text 12 7) "8")
-\times 2/3 { c4. c4. c4. c4. }
-
-\once \override TupletNumber #'text =
- #(tuplet-number::append-note-wrapper tuplet-number::calc-denominator-text "4")
-\times 2/3 { c8 c8 c8 c8 c8 c8 }
-\once \override TupletNumber #'text =
- #(tuplet-number::append-note-wrapper tuplet-number::calc-fraction-text "4")
-\times 2/3 { c8 c8 c8 c8 c8 c8 }
-
-\once \override TupletNumber #'text =
- #(tuplet-number::fraction-with-notes "4." "8")
-\times 2/3 { c4. c4. c4. c4. }
-\once \override TupletNumber #'text =
- #(tuplet-number::non-default-fraction-with-notes 12 "8" 4 "4")
-\times 2/3 { c4. c4. c4. c4. }
-@end lilypond
+LilyPond.app now supports MacOS X 10.7, thanks Christian Hitz!
@item
-FretBoards now have a chordChanges property to keep repeated FretBoard objects
-from being typeset.
+Glissandi can now span multiple lines.
@end itemize
-
-
@ifhtml
For older news, go to
+@uref{http://lilypond.org/doc/v2.14/Documentation/changes/},
@uref{http://lilypond.org/doc/v2.12/Documentation/topdocs/NEWS.html},
-@uref{http://lilypond.org/doc/v2.10/Documentation/topdocs/NEWS.html},
or @uref{../,go back} to the Documentation index.