Box specific bar numbers in LilypondFri 05 November 2010 by Peter Ward
Just a bit of Lilypond / Scheme I wrote last night — if you want to have boxed bar numbers at certain bar numbers (which don't fit every nth bar - see the docs for that), you can use this code to do it:
\override Score.BarNumber #'break-visibility = #end-of-line-invisible \override Score.BarNumber #'self-alignment-X = #0 \override Score.BarNumber #'font-size = #2 \override Score.BarNumber #'stencil = #(make-stencil-boxer 0.1 0.25 ly:text-interface::print) \set Score.barNumberVisibility = #(lambda (x) (not (eq? (member x '(4 9 16 25)) #f)))
This will put boxed numbers at bars 4, 9, 16 and 25.