Re: Autobeaming in 3/8 time

[Damian leGassick]

fwiw i think the default is right -  what's being asked for is (to be  
pedantic) 6/16 beaming

anyway... if there aren't too may of them you could use a function  
like this

\version "2.11.23"
alt =
#(define-music-function (parser location music1 music2 music3  
music4)  (ly:music? ly:music? ly:music? ly:music?)
        #{              
                $music1
                \set stemLeftBeamCount = #1
                \set stemRightBeamCount = #2
                $music2
                \set stemLeftBeamCount = #2
                $music3
                $music4
                
        #})
{
        \time 3/8
        \alt  c'8[ c'16 c' c']
        
}

cheers

Damian

On 16 May 2007, at 10:35, Mats Bengtsson wrote:

> You can use
> \set Timing.beatLength = #(ly:make-moment 3 8)
> but then you will get a funny looking result if you have the rhythm  
> c8 c16 c16 c8
> for example. I'm actually not convinced that LilyPond does what it  
> should in
> these situations. There is a property subDivideBeams which seems to  
> work
> in some situations like
> {
>  \time 2/4
>  b16 b b b b16 b b b
>  \set subdivideBeams = ##t
>  \set Score.beatLength = #(ly:make-moment 1 8)
>  b16 b b b b16 b b b
> }
>
> but in 3/8 time, we get subdivided beams even if this property is  
> set to false
> (which it is by default).
>
>   /Mats
>
> Laura Conrad wrote:
> > Lily (version 2.10.20 on Ubuntu Linux) seems to have an odd default
> > for the autobeaming in 3/8 time.  When there's a dotted 8th note
> > followed by three 16th notes, it seems to me that the default  
> > behavior
> > should be to beam the three 16ths together with a double beam.  In
> > other words, what I want is for all the notes to be beamed together,
> > with a single beam between the dotted eighth and the first sixteenth,
> > and a double beam connecting the three sixteenth notes.
> >
> > What Lily's doing  is beaming the dotted eighth to the first  
> > sixteenth
> > note with a beam that has two bars on the right and one on the left,
> > a single beam between the first and second sixteenth notes, and a
> > double beam between the second and third sixteenth notes.
> > I have worked around this problem with the following code:
> >
> >     es8. [ \set stemLeftBeamCount = #1
> > \set stemRightBeamCount = #2
> > c16 \set stemLeftBeamCount = #2
> > es g ]
> >
> > Is there a more automated way to fix the problem in general?  I've
> > always found the documentation about the automatic beaming behavior
> > somewhat cryptic.  And if someone can figure out the way to automate
> > this case, can it become the default without breaking the rest of the
> > automatic beaming for 3/8 time, which is fine?
>
> --
> =============================================
>         Mats Bengtsson
>         Signal Processing
>         Signals, Sensors and Systems
>         Royal Institute of Technology
>         SE-100 44  STOCKHOLM
>         Sweden
>         Phone: (+46) 8 790 8463                         
>        Fax:   (+46) 8 790 7260
>         Email: address@hidden
>         WWW: http://www.s3.kth.se/~mabe
> =============================================
>
>
>
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