5 texidoc=" Tuplets may be nested."
15 \times 2/3 { c8[ c c] }
16 \times 2/3 { c8[ c c] }
17 \times 2/3 { c8[ c c] }
21 \times 2/3 { a8[ a a] }
22 \times 2/3 { a8[ a a] }
23 \times 2/3 { a8[ a a] }
26 \override TupletNumber #'text = #tuplet-number::calc-fraction-text