Rosegarden / Bugs / #1465 8va breaks lilypond export

David Faure - 2015-11-11

http://www.lilypond.org/doc/v2.19/Documentation/notation/displaying-pitches says we should be outputting \ottava #1 ... \ottava #0 instead?

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David Faure - 2015-11-11

lilypond generation (and then checking that lilypond doesn't give errors) is something that would benefit from being unit-tested.

I would contribute a first unit-test, but the buildsystem doesn't make it easy. What happened to the switch to cmake mentionned in https://cmake.org/pipermail/cmake-promote/2006-December/000446.html ? If the current developers would consider it, I could contribute a cmake buildsystem.

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- D. Michael McIntyre - 2015-11-11
  
  We lost our build system in the port. I am not a build system guy at all, and apparently neither was anyone else on the team at the time.
  
  Our build system is a train wreck, and I would be beside myself with joy if you would be willing to contribute a cmake build system. I can't imagine anyone else disagreeing, but I will post a note on the devel list for good measure.
  
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  - David Faure - 2015-11-12
    
    OK, keep me posted.
    
    I'm curious, which port was that? Qt3-Qt4?
    
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    - D. Michael McIntyre - 2015-11-12
      
      It was a port from KDE3 to Qt4. It was brutal and ugly.
      
      Which reminds me that if we were to end up with a new build system, it would be good to have the option to compile with either Qt4 or Qt5. In principle, either one should work now.
      
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Yves Guillemot - 2015-11-11

Should be fixed in rev. 14277.
It seems the exporter was using a very old and deprecated LilyPond syntax.
It was probably broken since years.

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David Faure - 2015-11-11

Thanks! This indeed fixes my first testcase. But it still gives an error with this other testcase:
http://www.davidfaure.fr/2015/8va-broken.rg

rosegarden_tmp_z29882.ly:40:44: error: syntax error, unexpected EVENT_IDENTIFIER
\ottava #1 gf''' 16 \ottava #1
[ ef''' bf'' af'' ] \stemDown gf'' 8 \ottava #0 r r2 \stemNeutral |
rosegarden_tmp_z29882.ly:21:5: error: errors found, ignoring music expression

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Yves Guillemot - 2015-11-11

Should be fixed in rev. 14278.
I really can't find any point to output the second "\ottava #1".
I remove it hoping it doesn't break anything else.

This fix needs more testing.

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David Faure - 2015-11-12

Thanks Yves, now the 8va works on my file. Moving on to the next issue... :-)
You can close this bug as far as I'm concerned.

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D. Michael McIntyre - 2015-11-15

status: open --> closed
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8va breaks lilypond export

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#1465 8va breaks lilypond export

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