isorhythm noun1 •A technique that arranges a fixed pattern of pitches with a repeating rhythmic pattern, used in some medieval motets and in more recent works.Even when such preconceived structural arrangements are not used, as in the Gloria of the Machaut Mass, the idea of isorhythm is present in the suggestion of recurring and balancing strophic plans. — 1955 formsisorhythms
