Re: broken beam in subdivided triplets

[Hans Aberg]

On 3 Apr 2008, at 13:35, Valentin Villenave wrote:
> I reproduced it with 2.11.43; however I can't say whether it's a bug
> or not... Mats, please, can you have a look at the output and tell me
> if this looks normal to you? Basically, LilyPond is handling the rythm
> as if it were two tuplets of sixteenth notes instead of one tuplet of
> eighth notes.
>
> \version "2.11.43"
>
> \relative c' {
>        \time 1/4
>
>        \times 2/3 { c16 c c8 c}
>        \times 2/3 { c8 c16 c c8}
>        \times 2/3 { c8 c c16 c}
> }

Hindemith, "ELementary training", says that triplets are (in CPP  
tradition) tripartite and sextuplets bipartite. And I think tuplets  
loose any structure from the meter.

Sa assuming this, I think the middle measure would be correct in a  
sextuplet, but incorrect in a triplet.

But he also notes that these are frequently written rather  
inconsistently. So I think that tuplets may be written "in one" as  
well. Then the measure two would be incorrect. If I add the following  
lines
       \times 2/3 { c16 c c c8.}
       \times 2/3 { c8. c16 c c}
       \times 2/3 { c16 c c c c c}
Then those are typeset "in one".

  Hans Åberg