Thanks James, this is not quite what I'm looking for. If, using snippet 333, I keep Default_bar_line_engraver in the context of the top staff, it fails to count a \ibar in the lower part, but if I restore Default_bar_line_engraver to its normal context of Score, the top part gets a redundant barline from the lower part.
Still hoping there's a solution somewhere... -- Graham On Sun, 2011-01-16 at 21:27 +0000, James Lowe wrote: > Hello, > > -----Original Message----- > From: Graham King <lilyp...@tremagi.org.uk> > Date: Sun, 16 Jan 2011 21:11:25 +0000 > To: "lilypond-user@gnu.org" <lilypond-user@gnu.org> > Subject: How to do simple arithmetic on bar numbers? > > >I'm preparing a modern-notation edition of a piece of choral renaissance > >polyphony, in which the maxima at the end of each section is notated as > >a neomensural "\maxima*n/m" (where, for each part, n,m are chosen to > >cause all the parts to end the section together). > > > >Example lilypond code and the result are attached. > > > >Bar-numbering is attached to the top part in the score so, when that > >part's maxima starts early and other parts are still moving, the other > >parts sometimes have "extra" bars of music. As a result, I have to > >reset the bar numbering manually afterwards (see line 27 of the example > >attached): > > > > \set Staff.currentBarNumber = #4 > > > >Rather than specifying a static bar number, how could the following > >pseudocode be programmed? > > > > \set Staff.currentBarNumber = Staff.currentBarNumber + x > > > >where, in this example, x = 1 > > > >As you can tell, I'm not a Scheme programmer! Thanks for any help you > >can offer. > >- > > > I'm not a scheme programmer either but we do have a snippet > > http://lsr.dsi.unimi.it/LSR/Snippet?id=333 > > That might give you some clues. > > I am also guessing that you could use a similar method that we document > for 'Upbeats' (see Notation Reference) where we can use > > \set Timing.measurePosition blahblahblah (instead of \partial X) > > to denote a position in a single measure but for your specific case use > > \set Timing.internalBarNumber or \set Timing.currentlBarNumber somehow. > > Look in the Internal reference for Timing_translator. > > I'm throwing these ideas out so that if you cannot figure something out, > someone else more knowledgeable that I in the internals might. > > James > > > > > > internalBarNumber > > > > > > -- Graham King <lilyp...@tremagi.org.uk> _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org http://lists.gnu.org/mailman/listinfo/lilypond-user
