Thank you for this! I’m not sure how it works—it looks like a Scheme engraver that changes the x parent of some time signatures—but it sure does!
> On Nov 8, 2022, at 2:59 PM, Jean Abou Samra <j...@abou-samra.fr> wrote: > > Le 08/11/2022 à 14:13, Nate Whetsell a écrit : >> I’ve noticed two issues with this. First, the above-score time signatures >> are usually centered over bar lines, but not when a measure is preceded by a >> clef change. In this case, time signatures seem to be placed before the new >> clef rather than centered over the following bar line. Second, when a new >> time signature occurs at the end of a page, it seems to be centered on the >> right margin. In the case of compound meters, this can cause the time >> signature to extend off the page. I’ve tried setting break-align-orders >> (https://lilypond.org/doc/v2.23/Documentation/internals/break_002dalignment_002dinterface >> >> <https://lilypond.org/doc/v2.23/Documentation/internals/break_002dalignment_002dinterface>) >> and space-alist to fix this >> (https://lilypond.org/doc/v2.23/Documentation/internals/timesignature >> <https://lilypond.org/doc/v2.23/Documentation/internals/timesignature>), but >> nothing seems to have an effect. > > > > For this one, try: > > > > \version "2.23.80" > > time-signatures = { > \time 2/4 > s2 | \noBreak > \time 3/4 > s2. | \noBreak > \time 4/4 > s1 | > \break > \pageBreak > \compoundMeter #'((1 1 3 4)) > s1*5/4 | > } > > \layout { > \numericTimeSignature > \context { > \Staff > \override InstrumentName.self-alignment-X = #RIGHT > } > \context { > \Score > \consists > #(lambda (context) > (let ((time-sigs '()) > (break-alignment #f)) > (make-engraver > (acknowledgers > ((time-signature-interface engraver grob source-engraver) > (when (not (ly:grob-property grob 'break-align-symbol #f)) > (set! time-sigs (cons grob time-sigs)))) > ((break-alignment-interface engraver grob source-engraver) > (set! break-alignment grob))) > ((stop-translation-timestep engraver) > (when break-alignment > (for-each > (lambda (sig) > (ly:grob-set-parent! sig X break-alignment)) > time-sigs)) > (set! time-sigs '()) > (set! break-alignment #f))))) > \override TimeSignature.break-align-anchor = > #ly:break-aligned-interface::calc-extent-aligned-anchor > \override TimeSignature.break-align-anchor-alignment = #CENTER > } > } > > \paper { > short-indent = 0.5\in > left-margin = 0.5\in > } > > \score { > << > \new Dynamics \with { > \consists Time_signature_engraver > \override TimeSignature.break-align-symbol = ##f > \override TimeSignature.font-size = #5 > \override TimeSignature.self-alignment-X = #CENTER > \override TimeSignature.X-offset = > #self-alignment-interface::self-aligned-on-breakable > \override TimeSignature.break-align-symbols = > #'(staff-bar time-signature) > } { > \time-signatures > } > > \new Staff \with { > instrumentName = "Instruments" > shortInstrumentName = \markup { > \override #'(baseline-skip . 2.5) > \fill-line > { > \lower #1.25 "Ins." > \right-column { "1" "2" } > } > } > } \relative { > \clef "bass" > c16 d e f g a b c | > \clef "treble" > c16 d e f g a b c d e f g | > c,,16 d e f g a b c d e f g a b c d | > c,,16 d e f g a b c d e f g a b c d e f g a | > } > >> > } > > > > Best, > Jean
