Re: Additive time signatures

[Hans Aberg]

On 29 Feb 2008, at 14:53, Rune Zedeler wrote:

> I have added a snippet that sets the beam grouping automatically.
> Needs loads of cleanup, but works.
>
> http://lsr.dsi.unimi.it/LSR/Item?u=1&id=395

Two possible extensions:

One might want (if called for) to have subbeaming, as in the what  
gets when in the input code is changed to
{
  \mixedMeter #'(3 2 2 3 8)
  \set beatGrouping = #'(1 1 1 1 1 1 1 1 1 1)
  \set subdivideBeams = ##t
  \repeat unfold 10 c'8 \repeat unfold 20 c'16
}
That is, the 2s and 3s in this example may have subgrouping.

And it is common to only to use "+" as is necessary to avoid  
confusing, summing the parts up. For example, the well known Eleno  
Mome 13 = 4+4+2+3, and a less common 13 = 3+2+3+2+3, then the Eleno  
Mome may use time signature
    13
    16
and the other
   8   5
     +
  16   16
So this is a supergrouping relative to the one in \mixedMeter,  
telling how the time signature should be summed up.

  Hans Åberg