Re: Acciaccatura beaming

[Mats Bengtsson]

If you experiment a bit, you will notice that the time signature change
has nothing to do with it. Rather, it's the preceding chord tremolo that
triggers the bug, as the following simplified example illustrates:

\version "2.8.4.1"
\relative c' {
\repeat "tremolo" 16 { a32 c }
\acciaccatura { c16[ d] }
e1
}

It seems that the bug has been solved in the latest development version
(which unfortunately is likely to have other bugs instead).
I'm not sure how easy it is to back-port the fix to the next 2.8.x release,
but I'm forwarding this email to bug-lilypond anyway.

  /Mats


Palmer, Ralph wrote:

> Hi - 
>
> I'm running 2.8.4.1 under Windows XP SP 2.
>
> I'm having trouble getting the beaming to work correctly on an
> acciaccatura. I have a preceding measure with tremolos, then a time
> change. In the log, I get the following message:
>
> Interpreting music... 
> programming error: Stem already has beam
> continuing, cross fingers
> programming error: Stem already has beam
> continuing, cross fingers
>
> If I run the measure with the acciaccatura without the preceding
> measure, it looks correct. I've tried using appoggiatura, as well, with
> the same results. Here are two snippets, one with the problem, and one
> without either the preceding measure or the problem:
>
> Snippet bad:
> %%%%%%%%%%%%%%%%%%%%%%
> \version "2.8.4.1"
> Music = {
>      \clef treble
>      \key c \major
>      \time 3/4
>
>         \repeat "tremolo" 4 { aes32( ^\markup \column {{ "di nuovo" }
> {misterioso} } c'32) } \repeat "tremolo" 4 { b32( dis'32) } \repeat
> "tremolo" 4 { bes32( dis'32) } \breathe |
>
>         \time 2/4
>         \acciaccatura { cis''16[ dis''] } eis''16 gis'' eis'' dis''~
> dis'' d'' cis''!8 \breathe |
>
>
> }
>
> \score {
>       \Music
>       }
> %%%%%%%%%%%%%%%%%%%%%%%%%%
>
> Snippet good:
> %%%%%%%%%%%%%%%%%%%%%%%%%%%
> \version "2.8.4.1"
> Music = {
>      \clef treble
>      \key c \major
>      \time 2/4
>
>         \acciaccatura { cis''16[ dis''] } eis''16 gis'' eis'' dis''~
> dis'' d'' cis''!8 \breathe |
>
>
> }
>
> \score {
>       \Music
>       }
> %%%%%%%%%%%%%%%%%%%%%%%%%%%%
>
> Can anyone tell what's happening, and/or how I can get the desired
> output?
>
> Thanks again for all the help this list has been,
>
> Ralph
> +++++++++++++++++++++++++
> Ralph Palmer
> Energy/Administrative Coordinator
> Keene State College
> Keene, NH 03435-2502
> Phone: 603-358-2230
> Cell: 603-209-2903
> Fax: 603-358-2456
> address@hidden
>
>
>
> _______________________________________________
> lilypond-user mailing list
> address@hidden
> http://lists.gnu.org/mailman/listinfo/lilypond-user
>  

--
=============================================
        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
=============================================