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Re: programming error: when \break used before \grace or after \afterGra


From: V!ctor Adán
Subject: Re: programming error: when \break used before \grace or after \afterGrace in combination with proportional notation
Date: Thu, 20 Nov 2008 12:04:21 -0500

Update,

I'm pretty sure now that the problem is in these two overrides:
\override SpacingSpanner #'strict-note-spacing = ##t
\override SpacingSpanner #'strict-grace-spacing = ##t

It turns out that grace notes coinciding with line/page breaks *can* compile
without errors while setting
proportionalNotationDuration = #(ly:make-moment )
as long as the strict-note-spacing and/or strict-grace-spacing are NOT set
to True.

Setting only
\override SpacingSpanner #'uniform-stretching = ##t
gives no errors.

So at this point we have a compromise between being able to have grace (or
afterGrace) notes on line breaks and having strict-note-spacing in
proportional notation.

So the following compiles correctly:

%%%%%%%%%% START %%%%%%%%%%%%%%%%
\version "2.11.64"
\include "english.ly"

\layout{
   \context{ \Score
      proportionalNotationDuration = #(ly:make-moment 1 32)
      \override SpacingSpanner #'uniform-stretching = ##t
   }
}

{
\new Voice{
     \time 1/4
     c'4
     \break
     \afterGrace c'4 {g'64}
     \break
     c'4
     \break
     c'4
     \break
     }

  \new Voice{
     \time 1/4
     c'4
     \break
     \grace{ g'64 }
     c'4
     \break
     c'4
     \break
     c'4
     \break
     }
}
%%%%%%%%%%%%%%%%%%% END %%%%%%%%%%%%%%%


Victor.


2008/11/19 V!ctor Adán <address@hidden>

> Hello Trevor,
>
> Thanks for your reply and for testing the examples.
> I've been trying to find an alternative to using grace notes, but
> unfortunately, I have not found one. I cannot simply strip-out graces in
> line breaks in my case because they play a very important role in the score
> and I have literally hundreds of grace notes in the piece. I've tried making
> "fake" grace notes using normal notes with modified attributes (size,
> duration multiplier) but the problem with this is that, as real notes that
> they are now, their attributes "interfere" (interact) with those of the the
> actually real notes (I hope that makes sense);  specifically, duration
> calculations, spacing, and beaming of real notes and "fake" grace notes now
> get mixed up. The nice thing about grace notes is that they have an
> independent logic: their durations do not interfere with durations of real
> notes, their beaming does not interfere with that of real notes, etc.
>
> Anyway, hope this can be fixed! If anyone else has other ideas please let
> me know.
>
> Victor.
>
>
>
> On Wed, Nov 19, 2008 at 3:47 PM, Trevor Bača <address@hidden> wrote:
>
>>
>>
>> On Fri, Nov 14, 2008 at 4:35 PM, V!ctor Adán <address@hidden> wrote:
>>
>>> Hello All,
>>>
>>> After trying for hours to figure out why my LilyPond score was generating
>>> programming error messages on compilation, I finally found the culprit and
>>> was able to come up with a pair of minimal examples generating the errors. I
>>> searched the mailing lists for solutions to this, but I found no posts of
>>> this specific problem, so I guess this is new.
>>>
>>> The problem seems to be occur when combining three things:
>>> 1. proportional notation:
>>>       proportionalNotationDuration = #(ly:make-moment 1 34)
>>>       \override SpacingSpanner #'strict-note-spacing =##t
>>> 2. \grace or \afterGrace notes
>>> 3. \break or \pageBreak immediately before \grace or immediately after
>>> \afterGrace notes.
>>>
>>> The two errors I get are:
>>> "programming error: bounds of spanner are invalid"
>>> and
>>> "programming error: No spring between column 1 and next one
>>> continuing, cross fingers"
>>>
>>> If I remove the strict-note-spacing = ##t assignment, everything works
>>> fine.
>>> Minimal code examples are included here, together with the LilyPond
>>> output.
>>>
>>> Any ideas how this can be fixed or how to go around it? Is this a bug?
>>>
>>>
>>> Many thanks,
>>>
>>> V!ctor Adan.
>>>
>>> PS Since this seems like a bug, I'm sending to the bug-lilypond mailing
>>> list too, just in case.
>>>
>>>
>>> %%%%%%%%%% CODE BEGINS %%%%%%%%%
>>>
>>> \version "2.11.64"
>>> \include "english.ly"
>>>
>>> \layout{
>>>    \context{ \Score
>>>       proportionalNotationDuration = #(ly:make-moment 1 34)
>>>       \override SpacingSpanner #'strict-note-spacing =##t
>>>       %\override SpacingSpanner #'strict-grace-spacing = ##t
>>>       %\override SpacingSpanner #'uniform-stretching = ##t
>>>    }
>>> }
>>>
>>> %%%%%%%%%%%%%%%%%%%%%% EXAMPLE 1 (afterGrace) %%%%%%%%%%%%%%%%%%%%%%%%
>>>  {
>>>      \new Voice{
>>>      \time 1/4
>>>      c'4
>>>      \break
>>>      \afterGrace c'4 {g'64}
>>>      \break
>>>      c'4
>>>      \break
>>>      c'4
>>>      }
>>>  }
>>>
>>> % %% LILYPOND OUTOUT:
>>> % GNU LilyPond 2.11.64
>>> % Processing `test.ly'
>>> % Parsing...
>>> % Interpreting music...
>>> % Preprocessing graphical objects...
>>> % Finding the ideal number of pages...
>>> % Fitting music on 1 page...
>>> % Drawing systems...
>>> % programming error: bounds of spanner are invalid
>>> % programming error: bounds of spanner are invalid
>>> % programming error: bounds of spanner are invalid
>>> % programming error: bounds of spanner are invalid
>>> % programming error: bounds of spanner are invalid
>>> % programming error: bounds of spanner are invalid
>>> % Layout output to `test.ps'...
>>> % Converting to `./test.pdf'...
>>>
>>>
>>> %%%%%%%%%%%%%%%%%%%%%%%%% EXAMPLE 2 (grace) %%%%%%%%%%%%%%%%%%%%%%%%%%%
>>>  {
>>>      \new Voice{
>>>      \time 1/4
>>>      c'4
>>>      \break
>>>      \grace{ g'64 }
>>>      c'4
>>>      \break
>>>      c'4
>>>      \break
>>>      c'4
>>>      }
>>>  }
>>> % %% LILYPOND OUTOUT:
>>> % GNU LilyPond 2.11.64
>>> % Processing `test.ly'
>>> % Parsing...
>>> % Interpreting music...
>>> % Preprocessing graphical objects...
>>> % programming error: No spring between column 1 and next one
>>> % continuing, cross fingers
>>> % programming error: No spring between column 2 and next one
>>> % continuing, cross fingers
>>> % programming error: No spring between column 2 and next one
>>> % continuing, cross fingers
>>> % programming error: No spring between column 2 and next one
>>> % continuing, cross fingers
>>> % programming error: No spring between column 1 and next one
>>> % continuing, cross fingers
>>> % Finding the ideal number of pages...
>>> % Fitting music on 1 page...
>>> % Drawing systems...
>>> % programming error: No spring between column 2 and next one
>>> % continuing, cross fingers
>>> % programming error: No spring between column 1 and next one
>>> % continuing, cross fingers
>>> % Layout output to `test.ps'...
>>> % Converting to `./test.pdf'...
>>>
>>> %%%%%%%%%%%%%%%% CODE ENDS 
>>> %%%%%%%%%%%%%%%%%%<http://lists.gnu.org/mailman/listinfo/lilypond-user>
>>>
>>>
>> Hi Víctor,
>>
>> Wow: insane. That is absolutely a bug. Breaks on my end (2.11.57), too.
>>
>> I fear, however, that this particular bug has probably been around since
>> inception. And it doesn't completely surprise me, either: up through
>> February (when I was finishing up the trio) 'weird things' would happen if I
>> had graces come at the beginning of a line; proportional notation was, of
>> course, turned on. I actually had to go back and strip out beginning-of-line
>> graces in the piece. The grace stripping wasn't too much of a loss for me
>> ... but I'd be willing to be that you're going to be using graces next to
>> line breaks all over, aren't you?
>>
>>
>> Trevor.
>>
>>
>>
>>
>> --
>> Trevor Bača
>> address@hidden
>>
>
>

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