Triple metre

Triple metre (or Am. triple meter, also known as triple time or ternary rhythm) 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
₂, 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.

It is reasonably common in ballads and classical music but much less so in traditions such as rock & roll and jazz. The most common time in rock, blues, country, funk, and pop is quadruple.[1] play  Jazz writing has become more adventurous since Dave Brubeck's album Time Out.[2][3][4] One noteworthy example of a jazz classic that employs triple metre is John Coltrane's version of "My Favorite Things". [5]

Triple time is common in formal dance styles, for example the waltz, the minuet and the mazurka, and thus also in classical dance music.

Movements in triple time characterized the more adventurous approach of 17th- and 18th-century music, for example the sarabande, which originated in Latin America and appeared in Spain early in the 16th Century, became a standard movement in the suite during the Baroque period. The Baroque sarabande is commonly a slow triple rather than the much faster Spanish original, consistent with the courtly European interpretations of many Latin dances.

Triple metre is rare in national anthems – the national anthems of Austria, the United Kingdom, Switzerland, and the United States being four notable exceptions.