Definition of "duple" [du•ple]

• Consisting of two; double. (adjective)
• Music Consisting of two or a multiple of two beats to the measure. (adjective)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "Conductors should mark the changes, and conduct them (beating the half-note, as much as possible); singers need only keep an even quarter-note pulse, whether duple or compound, and follow the natural rhythm and accentuation of the text."
• "Both musicians relished the dancing hemiola figures in the third movement, shifts of the downbeat between duple and triple groupings, and played with impressive bravura and accuracy."
• "From a musical perspective, these were melodies written in minor keys, in duple meter, at times in the rhythm of a marche (in most cases, a slow marche), in strophic form."