Re: Subtracting one from the measure number

[David Kastrup]

"Phil Holmes" <address@hidden> writes:

> I've got a piece of music that has a dotted bar and a (hidden) time
> signature change at a place where the bar number is not incremented.
> I know I could explicitly set the bar number to the new correct number
> (calculated number minus one) but is there a way of subtracting one
> from the existing bar number?

Probably less than pretty, but here you go:

{ \repeat unfold 40 c4
  \applyContext #(lambda (c)
                  (set! (ly:context-property
                         (ly:context-find c 'Timing)
                         'currentBarNumber)
                   (1- (ly:context-property c 'currentBarNumber))))
  \repeat unfold 40 c4
}


-- 
David Kastrup