Re: Once only custos

[Jacques Menu]

Hello Simon,

Thanks for your answer.

With:

%%%%%%%%%%%%%

\version "2.18.1"

\layout {

ragged-right = ##t

\context { \Staff

\consists "Custos_engraver"

% \override Staff.Custos.stencil = ##f

}

}

\relative c' {

d1

b1

\once\override Staff.Custos.style = #ly:custos::print

\break

a1

\break

f1

}

%%%%%%%%%%%%%

I get a warning which I coudn’d find mentioned on the Internet:

menu@semac1.epfl.ch:~/Documents/LaTeX/PartitionsLilypond > lily Custos.ly 

GNU LilyPond 2.18.2

Processing `/Users/menu/Documents/LaTeX/PartitionsLilypond/Custos.ly'

Parsing...

Interpreting music...

Preprocessing graphical objects...

warning: custos `custodes.calculation-in-progress.u1' not found

Finding the ideal number of pages...

Fitting music on 1 page...

Drawing systems...

Layout output to `Custos.ps'...

Converting to `./Custos.pdf'...

Success: compilation successfully completed

and there are glitches at the end of the «regular » lines except the last one, show in the attachment.

Thanks if you can help!

JM

Le 1 avr. 2014 à 16:11:09, Simon Albrecht <address@hidden> a écrit :

Am 01.04.2014 09:43, schrieb Jacques Menu:

Hello Simon,

With:

 \layout { ragged-right = ##t }

\new Staff
\with {
  \consists "Custos_engraver"
  \override Custos.stencil = ##f
}
\relative c' {
  g'1 \override Staff.Custos.style = #'mensural
  \break
  <d a' f'>1
  b1
  \once\override Staff.Custos.stencil = ##t
  \break
  <d a' f'>1
}

the custo doesn’t show up unfortunately.

Sorry, I should have tried it myself. If you read the log output Lily generates, you see that ##t isn’t allowed as a value for Custos.stencil. So, you can look it up in the Internals reference, section 3.1.32, and look up the default value for the Custos stencil, which gives you
\once\override Staff.Custos.style = #ly:custos::print
and the output then is as desired.
(\once\revert was another idea I had, but \once and \revert don’t seem to go together.)

Happy Lilyponding,
Simon

JM


Le 31 mars 2014 à 23:06, Simon Albrecht <address@hidden> a écrit :

Am 31.03.2014 16:15, schrieb Jacques Menu:

Hello,

I’d like to display a custo at the end of one line only to help, but not for the whole score.

Couldn’t find an equivalent of:
\once\override Staff.Custos.style = #’mensural
though.

Thanks for the help!

Jacques Menu



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You might try
\layout {
 \context { \Staff
   \consists "Custos_engraver"
   \override Custos.stencil = ##f
 }
}

and then turn the stencil on again by \once\override Staff.Custos.stencil = ##t only in the particular place where you want it.

HTH,
Simon

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