Autobeaming problem in 12/16

[Neil Puttock]

Hi everybody,

I'm trying to set the autobeaming behaviour in 12/16 so that the semiquavers are beamed as two sets of 6/16 with a subdivision of 3/16 (see picture below). So far, I've come up with the following code , which doesn't work properly:

\version "2.11.30"
\paper { ragged-right = ##t } 
\relative { \time 12/16
    #(override-auto-beam-setting '(end * * 12 16) 6 16 'Score)
    c'16 c c c c c c c c c c c  %correct autobeaming without subdivision
    \set beatLength = #(ly:make-moment 3 16)
    \set subdivideBeams = ##t
    c16 c c c c c c c c c c c  %autobeaming breaks down, subdivision incorrect for first beat
    c16[ c c c c c] c c c c c c  %works, but would rather avoid manual beams
}

Is there something I'm missing here?

Thanks,
Neil

autobeaming.PNG
Description: PNG image