Duple and quadruple metre


Duple metre is a musical metre characterized by a primary division of 2 beats to the bar, usually indicated by 2 and multiples or 6 and multiples in the upper figure of the time signature, with ,, and being the most common examples.
Shown below are a simple and a compound duple drum pattern.
\new Staff <<
\new voice \relative c'
\new voice \relative c
>>
\new Staff <<
\new voice \relative c'
\new voice \relative c
>>
Though it must, the upper figure being divisible by 2 does not of itself indicate duple metre. For example, a time signature of usually indicates compound duple metre though it may locally emphasize simple triple, such as the famous example of Leonard Bernstein's song "America" from West Side Story.
The most common time signature in rock, blues, country, funk, and pop is. Although jazz writing has become more adventurous since Dave Brubeck's Time Out, the majority of jazz and jazz standards are still in four time.
Duple time is common in many styles including the polka, notorious for its obvious "oom-pah" duple feel. Compare to the waltz.
Binary measure refers to common time.

Quadruple metre

Quadruple metre is a musical metre characterized in modern practice by a primary division of 4 beats to the bar, usually indicated by 4 in the upper figure of the time signature, with being the most common example.
Shown below are a simple and a compound quadruple drum pattern.
\new Staff <<
\new voice \relative c'
\new voice \relative c
>>
\new voice \relative c'
\new voice \relative c
>>