duple (or double) time consists of two (or a multiple of two) beats to a measure.
Examples of duple
duple
In columbia, triple pulse is the primary structure and duple pulse is secondary.
From the en.wikipedia.org
However, the duple-pulse forms have existed in sub-Saharan Africa for centuries.
From the en.wikipedia.org
If each measure is divided into two it is duple and if into three it is triple.
From the en.wikipedia.org
The most usual time in our music is a simple duple or a simple quadruple beat.
From the theatlantic.com
Like clave, the standard pattern is expressed in both triple and duple-pulse.
From the en.wikipedia.org
The music consists of a single phrase in duple meter, repeated many times.
From the en.wikipedia.org
Duple probably didn't care, the Brittania was not where the jam lay.
From the en.wikipedia.org
Triple-pulse strokes can be substituted for duple-pulse strokes.
From the en.wikipedia.org
Typically piano, accordion, or bass plays a duple oom-pah beat.
From the en.wikipedia.org
More examples
Double: consisting of or involving two parts or components usually in pairs; "an egg with a double yolk"; "a double (binary) star"; "double doors"; "dual controls for pilot and copilot"; "duple (or double) time consists of two (or a multiple of two) beats to a measure"
Meter or metre is a term that music has inherited from the rhythmic element of poetry (Scholes 1977; Latham 2002) where it means the number of lines in a verse, the number of syllables in each line and the arrangement of those syllables as long or short, accented or unaccented (Scholes 1977; ...
Beats grouped into sets of two (strong-weak)
Occurring in groups of two; used to refer to rhythmic patterns such as 2/4 or 4/4.