…can be easily done by using \override Staff.TimeSignature.style = #'single-digit to change the style permanently. By using \revert Staff.TimeSignature.style, this setting can be reversed. To apply …
…c c % Change the style permanently \override Staff.TimeSignature.style = #'single-digit \time 2/4 c4 c \… …c c % Revert to default style: \revert Staff.TimeSignature.style \time 2/4 c4 c % single-digit style … …for the next time signature \once \override Staff.TimeSignature.style = #'single-digit \time 5/4 c4 c …