On 8-4-2012 16:26, Hans Aikema wrote:
On 8-4-2012 12:50, Helge Kruse wrote:
Hello,
I need to typeset a piece but want to keep the original beaming. The
beams that Lilypond uses per default does not match. I know I can add
the [] to manually control beaming, but I hope I can do this more
declarative as described in notation reference "1.2.4 Beams".
In this measure I want to break up the sextuplets in treble to a 3+3
group. The semiquavers should be grouped 2+2.
The quavers in the base staff should be grouped 2+2.
\version "2.14.2"
\new PianoStaff <<
\new Staff {
\time 4/4 \key g \major
\set Timing.baseMoment = #(ly:make-moment 1 16)
\set Timing.beatStructure = #'(2 2 2 2)
\relative c'' {
\times 4/6{c'16 a b c b a } \times 4/6{r e fis g fis e }
fis16 d fis a r fis a c | % 24
}
}
\new Staff {
\time 4/4 \key g \major \clef bass
\set Timing.baseMoment = #(ly:make-moment 1 8)
\set Timing.beatStructure = #'(2 2 2 2)
\relative c {
fis8 d' g, d' a d b d | % 24
}
}
>>
I can change the beaming with beatStructure, but baseMomemt doesn't
change anything. I also tried with Staff and Voice context but got
the same result.
How can I achieve the described grouping?
Regards,
Helge
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.
The way to get the desired grouping would be overriding the
beamExceptions:
(see also NR chapter 1.2.4:
http://lilypond.org/doc/v2.14/Documentation/notation/beams#setting-automatic-beam-behavior)
...
On second thought it can be done even less complex than my previous mail:
Clear out the beamExceptions that are default present in the Timing
context due to 4/4 time signature and only set a
baseMoment/beatStructure for the treble staff (without exceptions the
bass staff is correctly divided into quarters)
Oh and of course the beatStructure for a 4/4 measure using 1/16 as
baseMoment should be 8 tuplets, not 4, alhough 4 works fine as well):
(4/4 == 16/16 == 2/16 * 8)
\version "2.14.2"
\new PianoStaff <<
\new Staff {
\time 4/4 \key g \major
\set Staff.baseMoment = #(ly:make-moment 1 16)
\set Staff.beatStructure = #'(2 2 2 2 2 2 2 2)
\relative c'' {
\times 4/6{c'16 a b c b a } \times 4/6{r e fis g fis e }
fis16 d fis a r fis a c | % 24
}
}
\new Staff {
\time 4/4 \key g \major \clef bass
\set Timing.beamExceptions = #'()
\relative c {
fis8 d' g, d' a d b d | % 24
}
}
>>
regards,
Hans
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