In
music a
tuplet (also
irrational rhythm or
groupings,
artificial division or
groupings,
abnormal divisions,
irregular rhythm,
gruppetto,
extra-metric groupings, or, rarely,
contrametric rhythm) is "any
rhythm that involves dividing the
beat into a different number of equal
subdivisions from that usually permitted by the
time-signature (e.g., triplets, duplets, etc.)" . This is indicated by a number (or sometimes two), indicating the fraction involved. The notes involved are also often grouped with a bracket or (in older notation) a slur. The most common type is the "triplet".