4 Tuplets are indicated by a bracket with a number. There should be no
5 bracket if there is one beam that matches the length of the tuplet.
6 The bracket does not interfere with the stafflines, and the number is
7 centered in the gap in the bracket.
11 \notes \context Voice \relative c'' {
12 \times 2/3 { \times 2/3 { a8 b c} c }
13 \times 3/4 { c4 c4 c4 c4 }
15 \times 6/9 { c8 c c c c c c c c }