Re: Beam settings in 2.13.29

[Nick Payne]

Yes, it works when used before the time signature when I use #'Score but 
not when I use #'Voice.

I also notice that when I turn off the beamExceptions the beaming goes a 
bit haywire. Have a look at bars 5 and 6 after I have used \set 
beamExceptions = #'():

\version "2.13.29"

changeBeamingA = \overrideTimeSignatureSettings
      #'Score
      #'(2 . 4)  % time signature fraction
      #'(1 . 8)  % base moment fraction
      #'(1)    % beatStructure
      #'((end . (((1 . 16) . (2 2 2 2))
                   ((1 . 24) . (3 3 3 3))
                   ((1 . 32) . (4 4 4 4))
                   ((1 . 48) . (6 6 6 6))))) % beamExceptions

changeBeamingB = \set beamExceptions =
      #'((end . (((1 . 16) . (2 2 2 2))
                 ((1 . 24) . (3 3 3 3))
                 ((1 . 32) . (4 4 4 4))
                 ((1 . 48) . (6 6 6 6))))) % beamExceptions

revertBeaming = \set beamExceptions = #'()

\relative c'' {
    \set tupletSpannerDuration = #(ly:make-moment 1 8)
    \changeBeamingA
    \time 2/4
    \repeat unfold 8 c16
    \times 2/3 { \repeat unfold 12 c16 }
    \repeat unfold 16 c32
    \times 4/6 { \repeat unfold 24 c32 }
    \revertBeaming
    \break \repeat unfold 8 c16 \repeat unfold 16 c32
    \changeBeamingB
    \repeat unfold 8 c16
    \times 2/3 { \repeat unfold 12 c16 }
    \repeat unfold 16 c32
    \times 4/6 { \repeat unfold 24 c32 }
}

Nick

On 07/08/10 05:36, Trevor Daniels wrote:
> Hi Nick
>
> There are a couple of things which prevented your
> override from working.  Don't forget this is very new
> code in a development release - you're probably the
> first person to use it in anger, so you may find any
> residual bugs.
>
> First, the override command simply overrides the
> *default* which will be used when invoked by any
> later \time command, so the \time command must come
> *after* \changeBeaming, not before.
>
> Second, this only seems to work in the Score context.
> I don't know if this is a bug or an error in the
> documentation.  We'll have to wait for Carl to return
> from vacation to check this out.
>
> Trevor
>
> ----- Original Message ----- From: "Nick Payne" 
> <address@hidden>
> To: "Trevor Daniels" <address@hidden>
> Cc: "lilypond-user" <address@hidden>
> Sent: Thursday, August 05, 2010 1:03 PM
> Subject: Re: Beam settings in 2.13.29
>
>
> > Thanks, that works. I assume the command to revert beaming to the 
> > defaults is \set beamExceptions = #'()
> >
> > I'd still like to understand why what I did with 
> > overrideTimeSignatureSettings didn't work. From my reading of s.1.2.3 
> > of the notation manual it should have.
> >
> > Nick
> >
> > On 05/08/10 18:02, Trevor Daniels wrote:
> > > Hi Nick
> > >
> > > You got the hard bit right, but from 2.13.29 you can
> > > use the simpler
> > >
> > > changeBeaming = \set beamExceptions =
> > >       #'((end . (((1 . 16) . (2 2 2 2))
> > >                  ((1 . 24) . (3 3 3 3))
> > >                  ((1 . 32) . (4 4 4 4))
> > >                  ((1 . 48) . (6 6 6 6))))) % beamExceptions
> > >
> > > to change the beaming exceptions.
> > >
> > > Trevor
> > >
> > > ----- Original Message ----- From: "Nick Payne" 
> > > <address@hidden>
> > > To: "lilypond-user" <address@hidden>
> > > Sent: Thursday, August 05, 2010 1:22 AM
> > > Subject: Beam settings in 2.13.29
> > >
> > >
> > > > In 2/4 time, in earlier versions I used
> > > >
> > > > changeBeaming = \overrideBeamSettings #'Voice #'(2 . 4) #'end #'((* 
> > > > . (2))
> > > >         ((1 . 8) . (2 2))
> > > >         ((1 . 16) . (2 2 2 2))
> > > >         ((1 . 32) . (4 4 4 4))
> > > >         ((1 . 48) . (6 6 6 6)))
> > > >
> > > > to get 16th and 32nd notes and tupletted 16th 32nd notes grouped as 
> > > > I wanted, putting \changeBeaming in the voice where it's needed.
> > > >
> > > > 2.13.29 convert-ly tells me that I need to change this manually to 
> > > > use overrideTimeSignatureSettings or beamExceptions, but I'm 
> > > > struggling to find an example that I can use as a base.
> > > >
> > > > I tried changing my override to:
> > > >
> > > > changeBeaming = \overrideTimeSignatureSettings
> > > >       #'Voice
> > > >       #'(2 . 4)
> > > >       #'(1 . 4)
> > > >       #'(1 1)
> > > >       #'((end . (((1 . 16) . (2 2 2 2))
> > > >                    ((1 . 24) . (3 3 3 3))
> > > >                    ((1 . 32) . (4 4 4 4))
> > > >                    ((1 . 48) . (6 6 6 6)))))
> > > >
> > > > the score builds without error and I get a PDF, but the beaming is 
> > > > still the default - eg 32nd notes are beamed eight at a time.
> > > >
> > > > Here's my short example. How do I get four beams per bar?
> > > >
> > > > \version "2.13.29"
> > > >
> > > > changeBeaming = \overrideTimeSignatureSettings
> > > >       #'Voice
> > > >       #'(2 . 4)  % time signature fraction
> > > >       #'(1 . 4)  % base moment fraction
> > > >       #'(1 1)    % beatStructure
> > > >       #'((end . (((1 . 16) . (2 2 2 2))
> > > >                    ((1 . 24) . (3 3 3 3))
> > > >                    ((1 . 32) . (4 4 4 4))
> > > >                    ((1 . 48) . (6 6 6 6))))) % beamExceptions
> > > >
> > > > \relative c'' {
> > > >     \time 2/4
> > > >     \changeBeaming
> > > >     \repeat unfold 8 c16
> > > >     \times 8/12 { \repeat unfold 12 c16 }
> > > >     \repeat unfold 16 c32
> > > >     \times 16/24 { \repeat unfold 24 c32 }
> > > > }
> > > >
> > > > Nick
> > > >
> > > > _______________________________________________
> > > > lilypond-user mailing list
> > > > address@hidden
> > > > http://lists.gnu.org/mailman/listinfo/lilypond-user

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