[lilypond.git] / Documentation / topdocs / NEWS.tely

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@setfilename NEWS.info
@settitle NEWS

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@documentencoding utf-8
@documentlanguage en

@finalout

@node Top
@top New features in 2.12 since 2.10

@ifhtml
This document is also available in @uref{NEWS.pdf,PDF}. It is part of
the @uref{../,LilyPond Documentation}.
@end ifhtml




@itemize @bullet

@ignore

HINTS

* only show verbatim input for syntax/input changes

* try to be as brief possible in those cases

* don't try to provide real-world examples, they often get too big,
which scares away people.

* Write complete sentences.

* only show user-visible changes. 

@end ignore

@item
Unbeamed 128th notes are now supported:
@lilypond[quote]
\relative c'' {
  g128
}
@end lilypond

@item
Extending LilyPond's existing support for microtones, there are
now arrowed accidentals for the notation of microtonal alterations.
To use them, redefine the @code{glyph-name-alist} property of
@code{Accidental} as in the following example which uses quartertones
to typeset arrowed accidentals. Alternatively, it is possible to
define separate names for all notes with arrowed accidentals (see
@code{ly/makam.ly} for boilerplate code).

@lilypond[quote]
microAccs = #'((0 . "accidentals.natural")
               (-1/2 . "accidentals.flat")
               (1/2 . "accidentals.sharp")

               (1 . "accidentals.doublesharp")
               (-1 . "accidentals.flatflat")

               (3/4 . "accidentals.sharp.arrowup")
               (1/4 . "accidentals.sharp.arrowdown")
               (-1/4 . "accidentals.flat.arrowup")
               (-3/4 . "accidentals.flat.arrowdown"))

\relative c'' {
  #(set-accidental-style 'modern)
  \override Accidental #'glyph-name-alist = #microAccs
  geseh geh aih aisih
}
@end lilypond

@item
Straight flags (used in old scores of e.g. Bach, but also in different form in 
modern scores of e.g. Stockhausen) are now implemented:
@lilypond[quote]
\relative c'' {
  \override Stem #'flag = #modern-straight-flag
  c,16 \acciaccatura {c'8} d4 d32 
  \bar":"
  \override Stem #'flag = #old-straight-flag
  c,16 \acciaccatura {c'8} d4 d32 
}
@end lilypond

@item
@code{\bookpart} blocks may be used to split a book into several parts,
separated by a page break, in order to ease the page breaking, or to use
different @code{\paper} settings in different parts.

@example
\bookpart @{
  \header @{
    title = "Book title"
    subtitle = "First part"
  @}
  \score @{ @dots{} @}
  @dots{}
@}
\bookpart @{
  \header @{
    subtitle = "Second part"
  @}
  \score @{ @dots{} @}
  @dots{}
@}
@end example

@item
Nested contexts of the same type are now allowed.
This deprecates @code{InnerStaffGroup} and @code{InnerChoirStaff}.
@lilypond[quote,relative=1]
\new StaffGroup <<
  \new Staff { c1 }
  \new StaffGroup <<
    \new Staff { c1 }
    \new Staff { c1 }
  >>
>>
@end lilypond

@item
Percent repeat counters can be shown at regular intervals using the
context property @code{repeatCountVisibility}.
@lilypond[quote,relative=1]
{
  \set countPercentRepeats = ##t
  \set repeatCountVisibility = #(every-nth-repeat-count-visible 2)
  \repeat percent 6 { c4 d e f }
}
@end lilypond

@item
In addition to the already existing @code{showLastLength} property,
@code{showFirstLength} can now be set as well, rendering only the first
measures of a piece.  Both properties may be set at the same time:
@lilypond[quote]
showFirstLength = R1*2
showLastLength = R1*3
\relative c' { c1 d e f g a b c }
@end lilypond

@item
The file extension for MIDI can be set using the command-line
program default @code{midi-extension}.  For Windows, the default
extension has been changed to @code{.mid}.

@item
Two variations on the default double repeat bar line are now available.
@lilypond[quote]
{
  \set Score.doubleRepeatType = #":|.:"
  \repeat volta 2 {
    c'1
  }
  \repeat volta 2 {
    c'1
  } 
  \bar ":|.|:"
  c'1
}
@end lilypond

@item
Four automatic accidentals rules have been added: @code{neo-modern},
@code{neo-modern-cautionary}, @code{dodecaphonic} and @code{teaching}.
The following example illustrates @code{neo-modern} rule.
@lilypond[quote]
notes = {
  <<
    \relative c' {
      cis'8 fis, d'4 <a cis>8 f bis4 |
      cis2. <c, fis>4 |
    }
    \\
    \relative c' {
      ais'2 cis, |
      fis8 b a4 cis2 |
    }
  >>
}

\new Staff {
  #(set-accidental-style 'neo-modern)
  \notes
}
@end lilypond

@item
Flags can now be generated with Scheme-code using the @code{'flag}
@code{Stem} grob property.  Existing scores will work without change.
@lilypond[quote]
testnotes = {
  \autoBeamOff
  c'8 d'16 c''8 d''16
}

#(define (inverted-flag stem-grob)
  (let* ((dir (if (eqv? (ly:grob-property stem-grob 'direction) UP) "d" "u"))
         (flag (retrieve-glyph-flag "" dir "" stem-grob))
         (line-thickness (ly:staff-symbol-line-thickness stem-grob))
         (stem-thickness (ly:grob-property stem-grob 'thickness))
         (stem-width (* line-thickness stem-thickness))
         (stroke-style (ly:grob-property stem-grob 'stroke-style))
         (stencil (if (null? stroke-style) flag
                         (add-stroke-glyph flag stem-grob dir stroke-style "")))
                         (rotated-flag (ly:stencil-rotate-absolute stencil 180 0 0)))
    (ly:stencil-translate rotated-flag (cons (- (/ stem-width 2))  0))))

#(define-public (weight-flag stem-grob)
  (let* ((log (- (ly:grob-property stem-grob 'duration-log) 2))
         (is-up (eqv? (ly:grob-property stem-grob 'direction) UP))
         (yext (if is-up (cons (* log -0.8) 0) (cons 0 (* log 0.8))))
         (flag-stencil (make-filled-box-stencil '(-0.4 . 0.4) yext))
         (stroke-style (ly:grob-property stem-grob 'stroke-style))
         (stroke-stencil (if (equal? stroke-style "grace")
             (make-line-stencil 0.2 -0.9 -0.4 0.9 -0.4)
             empty-stencil)))
    (ly:stencil-add flag-stencil stroke-stencil)))

{
  \time 3/8
  \override Stem #'flag = #weight-flag
  \testnotes

  \override Stem #'flag = #inverted-flag
  \testnotes
}
@end lilypond

@item
Harp pedalling diagrams were added:

@lilypond[quote]
\markup { \harp-pedal #"^v-|vv-o^" }
@end lilypond

@item
Predefined, user-configurable, transposable fret diagrams
are now available in the @code{FretBoards} context:
@lilypond[quote]
\include "predefined-guitar-fretboards.ly"
<<
  \new ChordNames {
    \chordmode {
      c1
      \transpose c e { c }
    }
  }
  \new FretBoards {
    \chordmode {
      c1
      \transpose c e { c }
    }
  }
>>
@end lilypond

@item
The following syntax changes were made, in chronological order. In
addition, fret diagram properties have been moved to
@code{fret-diagram-details}, and the @code{#'style} property is
used to select solid/dashed lines instead of @code{#'dash-fraction}.

@example
'break-align-symbol -> 'break-align-symbols
scripts.caesura -> scripts.caesura.curved
\setEasyHeads -> \easyHeadsOn
\easyHeadsOff (new command)
\fatText -> \textLengthOn
\emptyText -> \textLengthOff
\set hairpinToBarline -> \override Hairpin #'to-barline
\compressMusic -> \scaleDurations
\octave -> \octaveCheck
\arpeggioUp -> \arpeggioArrowUp
\arpeggioDown -> \arpeggioArrowDown
\arpeggioNeutral -> \arpeggioNormal
\setTextCresc -> \crescTextCresc
\setTextDecresc -> \dimTextDecresc
\setTextDecr -> \dimTextDecr
\setTextDim -> \dimTextDim
\setHairpinCresc -> \crescHairpin
\setHairpinDecresc -> \dimHairpin
\sustainUp -> \sustainOff
\sustainDown -> \sustainOn
\sostenutoDown -> \sostenutoOn
\sostenutoUp -> \sostenutoOff
'infinite-spacing-height -> 'extra-spacing-height
#(set-octavation oct) -> \ottava #oct
\put-adjacent markup axis dir markup -> \put-adjacent axis dir markup markup
\pointAndClickOn (new command)
\pointAndClickOff (new command)
\center-align -> \center-column
\hcenter -> \center-align
printallheaders -> print-all-headers
\bigger -> \larger (already existing command)
systemSeparatorMarkup -> system-separator-markup
@end example

@noindent
Moreover, some files in the @code{ly/} directory have been renamed;
the *-init.ly filenames are now only used for files that are automatically
included, while such files as @code{makam-init.ly} or @code{gregorian-init.ly}
have been renamed to @code{makam.ly} or @code{gregorian.ly}.

@item
The ``tex'' and ``texstr'' backends have been removed.  Font are now
accessed via the fontconfig library; the Pango library is used to display
text strings.

@item
Metronome marks can now also contain a textual description.  The
duration and count (if given) are shown in parentheses after the text.

@lilypond[quote]
{
  \tempo "Fast"
  c'4 c' c' c'
  c'4 c' c' c'
  \tempo "Andante" 4 = 120
  c'4 c' c' c'
  c'4 c' c' c'
  \tempo 4 = 100
  c'4 c' c' c'
  c'4 c' c' c'
  \tempo "" 4 = 30
  c'4 c' c' c'
  c'4 c' c' c'
}
@end lilypond

@item
In figured bass you can now also use a backslash through a number to
indicate a raised 6th step.

@lilypond[quote]
\new FiguredBass \figuremode { < 6\\ 5\\ > < 6/ > }
@end lilypond

@item
Arpeggios may now use ``parenthesis'' style brackets:

@lilypond[quote,relative=1]
\override Arpeggio #'stencil = #ly:arpeggio::brew-chord-slur

% Note: does not work for cross-staff arpeggios.
\override Arpeggio #'X-extent = #ly:grob::stencil-width
<c g' c>2\arpeggio ~ c
@end lilypond

@item
Single-system scores are now naturally spaced instead of being
stretched to fill the line width.  This can be changed by setting
@code{ragged-right = ##f}.

@item
Enclosing text within boxes with rounded corners is now possible,
using the @code{\rounded-box} markup command.

@item
@command{lilypond-book} can run any program instead of @command{latex}
to guess the line width, thanks to @code{--latex-program} command line
option.

@item
Underlining is now possible with the @code{\underline} markup command.

@item
It is now possible to specify, using the @code{page-count} variable in
the paper block, the number of pages that will be used.

@item
A new page breaking function, @code{ly:minimal-breaking}, is dedicated
to books with many pages or a lot of text.

@item
A table of contents is included using @code{\markuplines \table-of-contents}.
Elements are added to it using the @code{\tocItem} command.

@item
Text spreading over several pages is entered using the
@code{\markuplines} keyword.  Builtin markup list commands, such as
@code{\justified-lines} or @code{\wordwrap-lines} may be used, and new
ones created using the @code{define-markup-list-command} Scheme macro.

@item
Particular points of a book may be marked with the @code{\label}
command.  Then, the page where these points are placed can be
referred to using the @code{\page-ref} markup command.

@item
Page breaking and page turning commands (@code{\pageBreak},
@code{\noPageBreak}, etc.) can be used at top-level, between scores and
top-level markups.

@item
The following options are now changed as a @code{-d} sub-option:
@code{--backend}, @code{--safe}, @code{--preview} and
@code{--no-pages} (which became @code{-dno-print-pages}).  The @code{-b}
option does not exist any more.

@item
Improved testing procedures now catch changes in CPU and memory
performance, page layout, MIDI results and warnings.  This helps to
reduce the number of regression errors during development, resulting
in more stable releases.

See @uref{INSTALL.html#Testing-LilyPond} for more information.

@item
Nested properties, such as @code{'details} in @code{Slur}, can be
reverted as well.  The syntax for this is

@example
\revert Slur #'(details closeness-factor)
@end example

@item
All line spanners are more flexible now in the configuration of
their end points.  This includes glissando, voice followers, text
crescendos and other text spanners.  The old syntax for setting
text on line spanners is no longer valid.

@lilypond[quote]
\relative c'' {
  \override Glissando #'(bound-details right text) = \markup { \center-align \bold down }
  \override Glissando #'(bound-details right Y) = #-4
  \override Glissando #'(bound-details right padding) = #0.0
  \override Glissando #'(bound-details left arrow) = ##t
  \override Glissando #'(bound-details left padding) = #3.0
  \override Glissando #'style = #'trill
  \override Glissando #'springs-and-rods = #ly:spanner::set-spacing-rods
  \override Glissando #'minimum-length = #12
  
  c1 \glissando c'
}
@end lilypond

This feature was sponsored by Trevor Bača.

@item
The environment variable @code{LILYPONDPREFIX} has been renamed
@code{LILYPOND_DATADIR}.

@item
Notes or rests, such as a typical end note, that fill an entire
measure are preceded by some more space.

@lilypond[quote,relative=1]
\time 4/4
s1
c2. c4
\time 3/4
c2.
@end lilypond

@item
All @code{\score}s in a lilypond-book fragment are now inserted
into the document.  Also, toplevel markups don't result in an entire
page.

@item
Alterations (such as a sharp or flat) may now be arbitrary
fractions.  This allows some forms of microtonal music.  For example,
Turkish makam music uses 1/9th tone alterations.

@lilypondfile[quote]{makam-example.ly}

@item
Tie directions may be set with @code{^~} and @code{_~}.

@item
Tablature now supports harmonics and slides:

@lilypond[quote,relative=1]
\new TabVoice {
  <c g'\harmonic>4 d\2\glissando e2\2
}
@end lilypond

This feature was sponsored by Mike Amundsen

@item
Horizontal spacing now follows object outlines more accurately.
This allows tighter horizontal spacing.

@lilypond[quote]
{
  \stemUp
  c''4... ceses'! s16
}
@end lilypond

@item
Objects that belong outside of the staff are now positioned
automatically to avoid collisions.

@lilypond[quote,relative=1]
c''4
\once \override TextScript #'self-alignment-X = #CENTER
a,4^"this doesn't collide with the c"
b4^"this goes above the previous markup"
a8_"this goes below the dynamic"
a8\f
@end lilypond

@item
Staves are spaced vertically using a skyline algorithm.  This helps
prevent uneven vertical spacing.

@lilypond[quote,ragged-right]

%% todo: fix 'landscape PDF.
#(set-default-paper-size "a6")
\header {
  tagline = ##f
}

\book {
  \score {
    {
      a,,1
      a'4 b' c'' d'' \break
      \repeat unfold 2 { a'4 b' c'' d''}
      b''''1
    }
  }
}
@end lilypond

@end itemize



@ifhtml
For older news, go to
@uref{http://lilypond.org/doc/v2.10/Documentation/topdocs/NEWS.html},
or @uref{../,go back} to the Documentation index.


@end ifhtml

@bye