@finalout
@node Top
-@top New features in 2.16 since 2.14
+@top New features in 2.20 since 2.18
@allowcodebreaks false
@end ignore
@item
-Flags are now treated as separate objects rather than as stem parts.
-@lilypond[fragment,quote,relative=2]
-\override Flag #'color = #red
-g8
-@end lilypond
+The PostScript functionality of stroke adjustment is no longer
+applied automatically but left to the discretion of the PostScript
+device (by default, Ghostscript uses it for resolutions up to
+150dpi when generating raster images). When it is enabled, a more
+complex drawing algorithm designed to benefit from stroke
+adjustment is employed mostly for stems and bar lines.
-@item
-Two alternative methods for bar numbering can be set, especially for
-when using repeated music;
-
-@lilypond[fragment,quote,relative=1,noragged-right]
-\relative c'{
- \set Score.alternativeNumberingStyle = #'numbers
- \repeat volta 3 { c4 d e f | }
- \alternative {
- { c4 d e f | c2 d \break }
- { f4 g a b | f4 g a b | f2 a | \break }
- { c4 d e f | c2 d }
- }
- c1 \break
- \set Score.alternativeNumberingStyle = #'numbers-with-letters
- \repeat volta 3 { c,4 d e f | }
- \alternative {
- { c4 d e f | c2 d \break }
- { f4 g a b | f4 g a b | f2 a | \break }
- { c4 d e f | c2 d }
- }
- c1
-}
-@end lilypond
-
-@item
-The following is a fundamental change in LilyPond's music
-representation: Rhythmic events like @code{LyricEvent} and
-@code{NoteEvent} are no longer wrapped in @code{EventChord} unless they
-have been actually entered as part of a chord in the input. If you
-manipulate music expressions in Scheme, the new behavior may require
-changes in your code. The advantages of making input and music match
-more closely are numerous: music functions previously worked differently
-when used inside or outside of chords. Now they are the same, including
-all the possibilities of argument parsing. You can now use music
-variables inside of chords: a construct like
-@lilypond[verbatim,quote,ragged-right]
-tonic=fis'
-{ <\tonic \transpose c g \tonic> }
-@end lilypond
-@noindent
-would have been unthinkable previously. You can use
-@code{#@{@dots{}#@}} for constructing chord constituents. Music
-functions inside of chords are no longer specially treated and thus
-accept the same arguments as outside of chords. @code{\tweak} now works
-on single notes without needing to wrap them in a chord. In theory, it
-can also work on command events and lyrics now. Since that was not
-possible before, it depends on luck on a case-by-case basis whether the
-tweak internals are already receiving the necessary information. Users
-are asked to report those cases where they find @code{\tweak} not
-working according to reasonable expectations.
-
-@item
-As one consequence, it was possible to reimplement the repetitive chord
-entry aid @code{q}. Repeated chords are now replaced right before
-interpreting a music expression. In case the user wants to retain
-some events of the original chord, he can run the repeat chord
-replacement function @code{\chordRepeats} manually.
-
-@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
-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
-The @code{\markuplines} command has been renamed to @code{\markuplist}
-for a better match with its semantics and general Lilypond
-nomenclature.
-
-@item
-The interface for specifying string tunings in tablature has been
-simplified considerably.
-
-@item
-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
-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
-Music functions (and their close relatives) can now be defined with
-optional arguments.
-
-@item
-For defining commands executed only for their side-effects,
-@code{define-void-function} is now available.
-
-@item
-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 post events without requiring a direction specifier
-(@code{-}, @code{^}, or @code{_}) placed before them.
-@lilypond[quote,verbatim,ragged-right]
-dyn=#(define-event-function (parser location arg) (markup?)
- (make-dynamic-script arg))
-\relative c' { c\dyn pfsss }
-@end lilypond
-
-@item
-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
-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
-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
-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
-@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
-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
-Appoggiaturas and acciaccaturas now also work inside a slur, not only inside
-a phrasing slur. Also, a function @code{\slashedGrace} was added that 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
-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
-LilyPond.app now supports MacOS X 10.7, thanks Christian Hitz!
-
-@item
-Glissandi can now span multiple lines.
+Stroke adjustment can be forced by specifying the command line
+option @samp{-dstrokeadjust} to LilyPond. When generating
+@code{PDF} files, this will usually result in markedly better
+looking @code{PDF} previews but significantly larger file size.
+Print quality at high resolutions will be unaffected.
@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/v2.18/Documentation/changes/},
+@uref{http://lilypond.org/doc/v2.16/Documentation/changes/},
or @uref{../,go back} to the Documentation index.
projects / lilypond.git / blobdiff