Hi, On Tue, Feb 3, 2015 at 4:35 PM, David Nalesnik <[email protected]> wrote:
> Hi Kaj, > > On Tue, Feb 3, 2015 at 1:37 PM, Kaj Persson <[email protected]> wrote: > >> In the snippet collection, the "Repeats" section, there is one named >> "Shortening volta brackets". I have use for just this, since in a piece of >> music I need some extra space in order to put a mark immediately after the >> volta alternative bracket. So I tested it, and, yes, the example promised >> well. The method is to work with the variable voltaSpannerDuration via the >> the statement: >> "\set Score.voltaSpannerDuration = #(ly:make-moment 2 4)" >> This way you can shorten the bracket even down to one single strike: >> >> >> But when I expand the system to this, hence two staves instead of one, >> this happens: >> >> > > I'll have to look at this some more, but it seems there is a bug. Even in > the single staff example, there is a warning: "cannot end volta spanner". > I get this with the snippet you reference as well. Possibly there is a > flaw in lily/volta-engraver.cc. And another "possibly": this might be > related to what happens in your multi-staff example. > > Yes, there is a problem in the file that defines the engraver. Unfortunately, there would need to be a fix to this file to enable you to use the property voltaSpannerDuration to give you what you want (and this wouldn't be available until the next release). Fortunately, there is a workaround, though you will need to "eyeball" it to get a good result. Try this: \version "2.18.2" StaffA = \relative c' { c4 c c c \repeat volta 2 { d4 d d d } \alternative { { e4 e e e } { % Shorten the volta bracket \override Score.VoltaBracket.shorten-pair = #'(0.5 . 5) % OR: % \offset shorten-pair #'(0 . 5) Score.VoltaBracket f4 r4 r4 r4 } } \repeat volta 2 {g4 g g g} } StaffB = \relative c'{ c4 c c c \repeat volta 2 { d4 d d d } \alternative { { e4 e e e } { % Shorten the volta bracket %\override Score.VoltaBracket.shorten-pair = #'(0.5 . 5) f4 r4 r4 r4 } } \repeat volta 2 {g4 g g g} } \score { << \StaffA % Remove the comment sign (%) on next line to get two staves. \StaffB >> \layout { } } %%%%% Hope this helps, David
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