Re: Spacing of clef change

Hi Aaron,

Wow, that technique for overriding end-of-system / begin-of-system grobs *independently of one another* fills in an extremely important LilyPond gap for me.

I've modified your example for the archives; everyone should know this technique.

%%% INDEPENDENT LINE-BREAK OVERRIDES %%%

\version "2.19.83"

\new Staff
{
\omit Score.BarNumber
\omit Staff.Clef
\omit Staff.TimeSignature
c'4 c'4 c'4 c'4
\bar ":..:"
\once \override Staff.BarLine.color = #(lambda (grob)
(if
(eq? LEFT (ly:item-break-dir grob))
(set! (ly:grob-property grob 'color) red))
(if
(eq? RIGHT (ly:item-break-dir grob))
(set! (ly:grob-property grob 'color) blue)))
\break
c'4 c'4 c'4 c'4
}

\layout {
indent = #0
ragged-right = ##t
}

%%% END %%%

Trevor.

On Thu, Jun 27, 2019 at 12:54 AM Aaron Hill <address@hidden> wrote:

On 2019-06-26 9:27 pm, Evan Driscoll wrote:
> I've got the example document below. There's a bit too little space for
> me
> between the last note in the last measure of the first line and the new
> clef.
>
> I found a mailing list entry that showed how to put some extra space
> before
> the clef (the commented-out override) and that looks great -- except
> that
> it also moves the clef at the start of the next system. I tried a
> \tweak
> version, but my attempt has no effect at all.

Here's one way to do it:

%%%%
\version "2.19.82"

\relative c {
\clef "bass"
\repeat unfold 10 {
g2. g4 |
}
\break
\once \override Staff.Clef.before-line-breaking = #(lambda (grob)
(and (eq? LEFT (ly:item-break-dir grob))
(set! (ly:grob-property grob 'X-extent) '(-2 . 2))))
\clef "tenor"
\repeat unfold 7 {
g8 g g2.
}
}
%%%%

-- Aaron Hill

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From:	Trevor Bača
Subject:	Re: Spacing of clef change
Date:	Sun, 1 Dec 2019 17:04:24 -0500