Re: Bug report for 1.4.1: Part extraction

[Mats Bengtsson]

It's really hard to say anything without having access to the
specific example. If you don't want to share it with everyone, 
I think it's best if you send a copy to Han-Wen and/or Jan, 
I'm afraid I won't have much time to do any debugging the next
week.

    /Mats

> Hi folks,
> 
> I'm routinely typesetting jazz quintet scores with Lily and do the part
> extraction for the individual players by "commenting out" the other voices.
> 
> So, now I had a score that compiled o.k., but when I extracted the vocal + 
> chord
> symbols, I got the following message:
> 
> lilypond: ../flower/include/interval.hh:28: Real Interval_t<double>::center():
> Zusicherung »!empty_b ()« nicht erfüllt.
> Fehler: lilypond: command exited with value 6
> Traceback (most recent call last):
>   File "/usr/local/bin/ly2dvi", line 770, in ?
>     run_lilypond (files, outbase, dep_prefix)
>   File "/usr/local/bin/ly2dvi", line 387, in run_lilypond
>     system ('lilypond %s %s ' % (opts, fs))
>   File "/usr/local/bin/ly2dvi", line 312, in system
>     error (msg)
>   File "/usr/local/bin/ly2dvi", line 205, in error
>     raise _ ("Exiting ... ")
> Exiting ...
> 
> The extraction of bass and drum parts works, the piano also fails. Tenor Sax
> tacet in this one, so it's just four.
> 
> Anybody knows that problem?
> 
> Amy                    
> 
> 
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