Triple metre (or Am. triple meter, also known as triple time) is a musical metre characterized by a primary division of 3 beats to the bar, usually indicated by 3 (simple) or 9 (compound) in the upper figure of the time signature, with 3
4, 3
8 and 9
8 being the most common examples. The upper figure being divisible by three does not of itself indicate triple metre; for example, a time signature of 6
8 usually indicates compound duple metre, and similarly 12
8 usually indicates compound quadruple metre.
Shown below are a simple and a compound triple drum pattern.
![\new Staff << \new voice \relative c' { \clef percussion \numericTimeSignature \time 3/4 \set Score.tempoHideNote = ##t \tempo 4 = 100 \stemDown \repeat volta 2 { g4 d' d } } \new voice \relative c'' { \override NoteHead.style = #'cross \stemUp \repeat volta 2 { a8[ a] a[ a] a[ a] } } >>](http://upload.wikimedia.org/score/s/9/s9u58cmgcnmemyzqn2af8injpsd1khj/s9u58cmg.png)
Stylistic differences
In popular music, the metre is most often quadruple,[1] but this does not mean that triple metre does not appear. It features in a good amount of music by artists such as The Chipmunks, Louis Armstrong or Bob Dylan.[2]
In jazz, this and other more adventurous metres have become more common since Dave Brubeck's album Time Out.[3][4][5] One noteworthy example of a jazz classic that employs triple metre is John Coltrane's version of "My Favorite Things".[6]
Triple time is common in formal dance styles, for example the sarabande, the minuet, the mazurka, the waltz and others.
Triple metre is rare in national anthems – the national anthems of Austria, the United Kingdom, Switzerland, Greece, and the United States being notable exceptions.