RE: problem with 12/16 beaming

[Trevor Daniels]

Hans Aberg wrote on 03 December 2007 18:34
> 
> On 3 Dec 2007, at 16:58, Trevor Daniels wrote:
> 
> > Maybe not much help if you have many of these,
> 
> You are right: this is a problem. The meter 12/16 
> is just one  
> possible description of it. If one accepts that, 
> there will be always  
> quadruplet patterns on the 3s in the 
> decomposition 12 = 3+2+2+3+2,  
> with a subaccent (of sort) in the middle of these 
> quadruplets. And  
> from sources as different as Hindemith, 
> "Elementary training", and  
> some Bulgarian sheet music, one can bring out the 
> subaccenting  
> through such subbeaming.
> 
Maybe this is a better solution for you.  If you need
other patterns it should be clear how to modify the
music function.  Someone with more experience with
music functions may be able to improve this so the
four quad notes can be placed inside braces after
the \quad call, but with care this works ok.

quad = #(define-music-function ( parser location a b c d )
         (ly:music? ly:music? ly:music? ly:music?)
         #{
           \times 3/4 {
             $a
             \set stemRightBeamCount = #1 $b
             \set stemLeftBeamCount = #1 $c
             $d
           }
         #}
       )

\relative c {
  \clef bass
  \time 24/32
  \set beatGrouping = #'(3 3 4 4 3 3 4)
  \set subdivideBeams = ##t
  #(override-auto-beam-setting '(end * * 24 32) 3 16)
  #(override-auto-beam-setting '(end * * 24 32) 7 16)
  #(override-auto-beam-setting '(end * * 24 32) 10 16)
  \quad c16 b c c 
  d c d g, 
  \quad a b c c 
  d e |
}
> 
>    Hans Aberg
> 
Trevor D
> 
>