Re: Bad \partcombine Output: Example

[Graham Percival]

Hi Will,

If you create a _minimal_ example I'll add it to the bug tracker, but I
suspect that the answer will be that this is a duplicate of
http://code.google.com/p/lilypond/issues/detail?id=34

Sorry,
- Graham

Will Oram wrote:
> Earlier (see 
> http://lists.gnu.org/archive/html/bug-lilypond/2007-06/msg00046.html), I 
> described very ugly output when using partcombine in lilypond .11.21 to 
> the current day. Parts took no heed of each other and proceeded to 
> overlap and create a trainwreck.
>
> After a LOT of ripping apart code, I've come up with a reason and an 
> example.
>
> REASON: Grace notes! When grace notes occupy the same space, it causes a 
> partcombine meltdown.
>
> Try this. In reading the output, note measure two: a quarter and dotted 
> half occupy the same beam, and slurring looks plain wrong.
>
> \include "english.ly"
>
> partA = \relative c''' {
>     \clef "treble"
>     c2 d\trill \bar "" \grace { c16[( d]) } \bar "|"
>     
>     cflat2.( c4)
>     dflat2 r
> }
> partB = \relative c'' {
>     \clef "treble"
>     c d2_\trill \bar "" \grace { c16[( d]) } \bar "|"
>     
>     eflat4( f8 gflat aflat4 gflat)
>     f2 r
> }
>
>
> \score {
>        \new Staff <<
>         \partcombine
>             \partA
>             \partB
>     >>
>
> \layout {
> }
> }
>
> learn from Crunchy
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