LilyPond was updated to 2.17.26:
* Decimal numbers can now be written directly in music, without a
hash sign. Together with the previous change in the way object
properties are specified, the code to change the length of stems
has changed from this:
\override Stem #'length = #5.6
e' f' g' a'
to this:
\override Stem.length = 5.6
e' f' g' a'
One has to write a digit on both sides of the dot - values like
`4.' or `-.3' are not allowed.
Decimal fractions are also not accepted in `\chordmode'.
* A number of shorthands like `(', `)', `|', `[', `]', `~', `\(',
`\)' and others can now freely be redefined like normal commands.
An example would be
"\\{" = (
"\\}" = )
"(" = \melisma
")" = \melismaEnd
\new Staff <<
\relative c' {
c8 \{ d e f \} % slurred
g ( a b c ) % no slur, but with melisma
c,1 \bar "|."
}
\addlyrics { Li -- ly -- pond. }
>>
[image of music]
* The articulation shorthand for `\staccatissimo' has been renamed
from `-|' to `-!'.
* Tempo change ranges are now written as `\tempo 4 = 60 - 68' rather
than `\tempo 4 = 60 ~ 68'.

- updated to 2.17.23:
* bugfixes

- updated to 2.17.14:
* The meaning of `instrumentTransposition' has been reversed. After
\set instrumentTransposition = #{ b #}
a written `c'' now sounds like `b'. Previously, this would have
been the other way round. This and the following change should
make dealing with transposing instruments more straightforward.
* The music generated by `\set' and `\override' commands is no
longer affected by `\transpose'. The main consequence is that
`\transpose' will transpose audible/concert pitch and printed
pitch by the same amount even when the transposed music contains
`\transposition'. Previously,
\transpose c' f' \transposition bes'
was equivalent to `\transposition f''. Now it stays equivalent to
`\transposition bes''.
* Tuplets are now created with the `\tuplet' command, which takes a
fraction `T/N' to specify that T notes are played in the time
usually allowed for N. One `\tuplet' command can create several
tuplet groups if their duration is typed after the fraction.
\tuplet 3/2 { c8 d e } \tuplet 3/2 { f e d } c2
\tuplet 3/2 4 { c8 d e f e d } c2
[image of music]
The `\times' command with its inverted fraction order `N/T' is
still available.
etc. see NEWS.txt

- updated to version 2.17.9:
* The `\clef' command supports optional octavation:
\clef "treble_(8)"
c2 c
\clef "bass^[15]"
c2 c
* The LilyPond syntax of dot-separated words `Voice.Accidental' has
been made interchangeable with `#'(Voice Accidental)', a Scheme
list of symbols. As one result, code like
\override Voice.TextSpanner #'(bound-details left text) = "rit."
is now equivalent to
\override Voice.TextSpanner bound-details.left.text = "rit."
or even
\override #'(Voice TextSpanner) bound-details.left.text = "rit."
* Grob and grob property path no longer need to be specified as two
separate arguments to commands like `\override' and `\revert',
allowing for the syntax
\override Voice.TextSpanner.bound-details.left.text = "rit."
Since complementary music functions like `\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 `\override' and `\revert' for compatibility
reasons, is deprecated.
* Due to words now being accepted as symbol function arguments, the
interfaces of `\accidentalStyle', `\alterBroken', `\footnote' and
`\tweak' had to be redesigned where optional symbol arguments were
involved. Please check the respective music function
documentation for details.
* Several commands now accept symbol lists (conveniently entered as
dot-separated words) for various kinds of arguments. These
include `\accidentalStyle', `\alterBroken', `\footnote', `\hide',
`\omit', `\overrideProperty', `\shape', and `\tweak'.
* 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 `.|:'. The command `\defineBarLine' provides an easy way
to define additional bar line styles.
* Accidentals in the key signature may be printed in octaves other
than their traditional positions, or in multiple octaves.

- update to version 2.16.1
- This is a bugfix update see :
http://code.google.com/p/lilypond/issues/list?can=1&q=Fixed_2_16_1

- updated to stable release 2.18.0 [bnc#851999]
* There is now a new context type called `NullVoice' which, while not
appearing in the printed output, can be used to align lyrics.
This can be particularly convenient when used in parallel with a
`\partcombine' construct.
* Several articulations can be put into a single variable or
returned from an event function.
* The baseline of score markups is now taken from the reference
point (usually the middle of the staff) of the first bottom system
rather than the top of the bounding rectangle.
* LilyPond no longer automatically infers a `\defaultchild' context
in a context definition with `\accepts' clauses. Any context
definition without an explicit or inherited `\defaultchild'
definition counts as a `Bottom' context and will be eligible for
rhythmic events and overrides without causing the implicit
creation of other contexts. Be sure to specify a `\defaultchild'
for non-`Bottom' contexts when defining them from scratch.
* There is now extensive support for both discant and bass accordion
register symbols in the `scm accreg' module, see *note Accordion
Registers: (lilypond-notation)Accordion Registers.
* New commands `markLengthOn' and `markLengthOff' control the
allowance of horizontal space for tempo and rehearsal marks.
* Rehearsal marks at the beginning of a line are now placed to the
right of the clef and key signature by default. As in previous
versions, the `break-alignable-interface' controls the behavior.
- see NEWS.txt for details