Federico, you wrote Sunday, December 30, 2012 10:59 PM
> In NR 1.2.3, Upbeats: > > """ > So \partial 8 becomes: > > \time 3/4 > \set Timing.measurePosition = #(ly:make-moment -1 8) > e8 | a4 c8 b c4 | > > _The property measurePosition contains a rational number indicating how > much of the measure has passed at this point_. Note that this is set to > a negative number by the \partial command: i.e., \partial 4 is > internally translated to -4, meaning “there is a quarter note left in > the measure.” > """ > > IMO the first sentence is a bit confusing. > What the number says actually is "how much of the measure is needed to > complete the time signature", 1/8 in the example above. This implicitely > says how much of the measure has passed at this point: 3/4 - 1/8 = 5/8 Because the time in the measure is calculated modulo the time signature the position -1/8 is the same as 5/8 in 3/4 time. But -1/8 is at position 5/8 in the /previous/ bar. The text tries to explain what \partial does, which is count backwards over the anacrusis. If you set measurePosition to 5/8 it looks the same as it does when set to -1/8, but the bar numbering will be 1 off. Trevor _______________________________________________ bug-lilypond mailing list bug-lilypond@gnu.org https://lists.gnu.org/mailman/listinfo/bug-lilypond