Music. Being or resembling a jig; having a lively or irregular rhythm.

= polyrhythmic, adj.

Music. Applied to modern popular music played or composed in the manner typical of ragtime and jazz.

Involving or using two or more different rhythms, metres, etc., esp. at the same time. Cf. polytonal, adj.

Of or relating to mensural music or mensuralists.

Music. ‘A modern musicological term applied to fourteenth-century choral works in which the tenor canto fermo (or sometimes an upper part) is many…