Re: auto-beaming question

[Joe Neeman]

> \version "2.6.3"
> \score { \new Staff { \relative c'{
>
>    \key g \major
>    \clef violin
>    \time 2/4
>    #(override-auto-beam-setting '(end * * * *) 1 4 )
>
>    c16. c32 c8 c4      %Bar 1
>
>    c8 c16. c32 c4      %Bar 2
> }}}
>
> The result can be seen here: 
> http://pocentek.perso.cegetel.net/test-override.png
> The 1st bar is not correct, and I can't see why.

The reason is because of these 2 lines in 
/usr/share/lilypond/2.6.X/scm/auto-beam.scm (or whereever you have 
installed lilypond):

((end 1 32 2 4) . ,(ly:make-moment 1 8))
((end 1 32 2 4) . ,(ly:make-moment 3 8))

That is, lilypond has a built-in beam setting that breaks a beam with a 
32nd note every 8th note. It's as if every .ly file you process has an 
imaginary #(override-auto-beam-setting '(end 1 32 2 4) 1 8 ) at the 
beginning. This is mentioned recent versions of the documentation.

So, to answer you question, you need

#(revert-auto-beam-setting '(end 1 32 2 4) 1 8 )
#(revert-auto-beam-setting '(end 1 32 2 4) 3 8 )
c16. c32 c8 c4      %Bar 1
c8 c16. c32 c4      %Bar 2