Re: warning: forced break was overridden by some other event, should you be using bar checks?

[Carl Sorensen]

On 1/12/22, 3:24 PM, "lilypond-user on behalf of Kenneth Wolcott" 
<lilypond-user-bounces+carl.d.sorensen=gmail.com@gnu.org on behalf of 
kennethwolcott@gmail.com> wrote:

    Yes, disabling line breaks removes the warning.  BTW, repeat volta 0
    is in use; is that relevant?

Why would one use \repeat volta 0?  It seems to make no sense to repeat a chunk 
of music 0 times.

    
    Thanks again,
    Ken
    
    On Wed, Jan 12, 2022 at 2:20 PM Kenneth Wolcott
    <kennethwolcott@gmail.com> wrote:
    >
    > Hi;
    >
    >   Is there a bug in the Lilypond parser regarding bar checks?
    >
This isn't a parsing problem, it's an interpretation problem  It shows up after 
parsing is completed.

It is somewhere between bars 32 and 40.

It will be somewhere where you have a /break command.

You are trying to break a line where there is music on either side of a break 
(e.g. one voice has c1, the other voice has a2 \break a2.)

Bar checks will catch this because you will have some place you think you are 
at the end of a bar (and that's where you put the \break), but you aren't 
actually at the end of a bar; you're in the middle of a measure with one or the 
other voice).

HTH,

Carl


    >   It would be nice if Lilypond would let me know more specifically
    > where this warning occurred, shouldn't it know?
    >
    >   I don't see the error in my engraving that would cause this and I'm
    > having trouble using the 8/16/24/32 to determine where the problem is.
    >
    >   Yes, I know I should do a block comment (determine location by use
    > of bisection), but, still, why can't Lilypond tell me which line in
    > the source is problematic?
    >
    > Thanks,
    > Ken Wolcott
    >
    > GNU LilyPond 2.22.1
    > Processing `Walzer.ly'
    > Parsing...
    > Interpreting music...[8][16][24][32]
    > warning: forced break was overridden by some other event, should you
    > be using bar checks?
    > [40][48][56]
    > Preprocessing graphical objects...
    > Interpreting music...
    > MIDI output to `Walzer.midi'...
    > Finding the ideal number of pages...
    > Fitting music on 1 or 2 pages...
    > Drawing systems...
    > Converting to `Walzer.pdf'...
    > Success: compilation successfully completed