* 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
+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
+
+@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 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
+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
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]
+@lilypond[fragment,quote,relative=2]
c4( \appoggiatura e8 d4 \acciaccatura e8 d4 \slashedGrace e8 c4)
@end lilypond
projects / lilypond.git / blobdiff