Modifies a noun

• time: His dances typically start in duple time, then for the second part shift to triple.

• meter: Tallis always sets the first polyphonic verse or pair of verses in compound duple meter and the others in simple duple.

• set: Our conclusions were that the Welch Whim should be taken as a duple minor set, by eliminating the 3rd couples.

• rhythm: The Ili style tends to use duple rhythms while in the south 5/8, 7/8 and 9/8 rhythms also appear.