In the following code, the first expression does more or less what I want; but I also want tuplet brackets. However, specifying that they are wanted, as in the second expression, seems to break stuff, and I have no idea why.
In fact, it is simply the presence of the override which causes the problem, as the effect is the same whether the value is ##t, ##f, or even the default #'if-no-beam. Is there a subtlety here I should learn about, or is there simply a bug? Paul \version "2.23.3" \language english \relative fs { \accidentalStyle dodecaphonic-no-repeat \clef bass \time 2/4 << { r16 \voiceTwo fs8.--~\mf \tuplet 3/2 { fs8 f,-- g-- } | } || { s4 \voiceOne fs'4 | } || { s4 s4*1/3 f,4*2/3 | } >> } \relative fs { \accidentalStyle dodecaphonic-no-repeat \override TupletBracket.bracket-visibility = ##t \clef bass \time 2/4 << { r16 \voiceTwo fs8.--~\mf \tuplet 3/2 { fs8 f,-- g-- } | } || { s4 \voiceOne fs'4 | } || { s4 s4*1/3 f,4*2/3 | } >> }