Re: [Lilypond-auto] Issue 3792 in lilypond: v2.19: \time change under \alternative triggers bug

[lilypond]

Comment #5 on issue 3792 by address@hidden: v2.19: \time change under  
\alternative triggers bug
http://code.google.com/p/lilypond/issues/detail?id=3792

The two regression tests seem to have been written to test different  
aspects of repeats, and without considering exactly how the measures should  
be counted. With this change, repeat-volta.ly and repeat-unfold-all.ly  
should be revised.

I do not see any need to maintain the particular consistency mentioned in  
comment #4.
(One would expect, though, that after the last alternative, the measure  
position comes out the same whether the music is unfolded or repeated.)

Almost always, the repeated portion (length of the \repeat plus any one  
\alternative except the final) will be an integral number of measures, even  
if the repeat begins and ends mid-measure, or if the time signature  
changes.   If a user goes outside that convention, I do not see a way to  
guess the expected behavior.

So 'repeat-volta.ly' could be in 3/4, or maybe just re-written.  The  
repeated section in 'repeat-unfold-all.ly' is 1/2 so that test would be  
fine in 4/4 time --- except that the whole motif is 5/4 long; adding a  
rests to complete a measure before the || would make it less confusing.

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