Richard Shann-2 wrote
> [...]
> Thanks - that works well. I've found this too:
>
> \newSpacingSection
> \override Score.SpacingSpanner.spacing-increment = #4
> [...]
Yep! Much smarter!!
blankBarAlter =
#(define-music-function (span-lgth notes) (number? ly:music?)
#{
\newSpacingSection
\temporary\override Score.SpacingSpanner.spacing-increment = #span-lgth
\hideNotes
#notes
\unHideNotes
\newSpacingSection
\revert Score.SpacingSpanner.spacing-increment
#})
\relative {
%% example 1
c'4 d e f
%% Notes are kwnown but won't be shown
\blankBarAlter #12.8 { g a b c }
c b a g
%% example 2
\break
c d e f
%% Unknown notes
\blankBarAlter #1.5 { s1 }
c4 b a g
}
~Pierre
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