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Re: Help with Tweaking of Volta Brackets - without repeat marks

From: James Lowe
Subject: Re: Help with Tweaking of Volta Brackets - without repeat marks
Date: Fri, 14 May 2010 12:39:46 +0100
User-agent: Thunderbird (Windows/20100228)


Phil Holmes wrote:

I'm by no means an expert on LilyPond or music, but can offer the following

You can get rid of the error message by ending the first volta with a finish
marking.  If you replace your second \set Score command with:

  \set Score.repeatCommands = #'((volta #f) (volta "Fine."))

It will compile cleanly.  However, you won't get the ending lines you're
looking for.  I think that this is because you're not actually signalling a
repeat from a musical perspective.  My understanding from playing with this
in LilyPond is that the double bar is not a repeat mark, and therefore
LilyPond has not found anywhere to actually terminate that section of music.
Replace your \bar "||" with \bar ":|" and you get the "terminated" bracket
you're looking for.  Ditto the second repeat isn't actually (in musical
terms) terminated - the music carries on past the 4th bar into the 5th.  If
you want a "terminated" bracket on the second time, you need to align the
end of the bracket with where the music ends, and tell LilyPond explicitly
where this is.  I do this with an end bar.

My version below isn't what you want, because it uses repeat bars where you
have double bars, but it is musically correct and ends the brackets as you

\relative c' {
  \time 4/4
  d'4. c8 b a g f
  \set Score.repeatCommands = #'((volta "1."))
  e4 e' e r
  \set Score.repeatCommands = #'((volta #f) (volta "Fine.") end-repeat)
  e,4 e e r \bar "||"
  c'4 c8 c c4 c8 c
  \set Score.repeatCommands = #'((volta #f))
\bar "|."

Phil Holmes

Thanks for your time. That does help explains things; I don't really fully understand syntax of these 'tweaks', maybe there is an alternative to 'end-repeat' that just 'ends' the bracket regardless.

In this case the end bar is incorrect in this piece at the 'fine' which is why it has double bars, and as I said before the repeats are not relevant either.

Perhaps I could remove the repeat bar engraver or make it invisible so that it prints the voltas right but 'hides' the repeats?

Again that is something I need to sit and figure out as I rarely have to make such tweaks so have to re-learn it each time on the rare occasions I do it.

Thanks again.


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