[jmsl] LilyPond issues

[jmsl at music.columbia.edu]

Hello J Starpoli

The LilyPond exporter is one area where I tend to discover little 
problems and add fixes & tweaks here and there. For example, most 
recently I was made aware that LilyPond does not handle more than one 
text mark per measure, which spurred me to rewrite the #repeats 
indication symbol, and that fixed some text justification problems. So 
there are a number little fixes in my prerelease that you are welcome to 
try out. Contact me off list and I will send it to you if you like.

But your issues sound far more extreme.  There are two things I know of 
that can cause truly crazed layout by LilyPond:
1) If you have unmatched repeat bars (for example, if a measure has an 
end repeat bar but not a start repeat bar). All bets are off on this 
one. LilyPond goes nuts. I should check for and generate a warning for 
this issue.
2) If measures do not have the right sum of durations in them.  A staff 
in a measure should either be empty (in which case the exporter will 
substitute a measure rest), or contain exactly the right total 
durations.  If you export to LilyPond with this problem, it will 
generate a warning. You can check you score first with the menu item 
"Score" -> "Check all measure durations". This will generate a report in 
a new window which you can follow to fix the score.

So my questions for you are:
1) Did you check your score for correct durations in each measure?
2) Are you using repeats and if so, are they matched?
3) Can you send me a problematic score offlist so I can inspect it? If 
you contact me off list I will let you know how to best send it to me.

Thanks
Nick Didkovsky

jmsl at music.columbia.edu wrote:
> Hi List,
>     I have been making much use of the LilyPond export feature since it was
> recently added to JScore.  Lately, however, I am experiencing increasingly
> frustrating results converting my scores, which do utilize a good deal of
> dynamics, marks, and text comments.  At first, I was able to glean a couple
> of tips from the LilyPond manual to correct certain global layout issues,
> but my latest score has measures printing in reverse order, barlines in the
> middle of nowhere, etc.  I have checked for measure duration errors,
> "contiguous tempi" and the like, but so far this has not helped.  I am not
> even sure if I should direct this post here or to the LilyPond list, but my
> programming skills are not advanced enough to fully inspect the .ly files
> that Jscore outputs.  I don't want to have to go back to cutting and pasting
> screen shots of Jscore (it didn't look nearly as professional), but I am
> limited to free- and shareware.  Any suggestions will be greatly
> appreciated.
>
> Thanks,
> J Starpoli
>
>
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