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Automatic beams


From: Helge Kruse
Subject: Automatic beams
Date: Sun, 08 Apr 2012 10:39:00 +0200
User-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2

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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