heterophonies

/ˌhɛtərəˈfoʊniz/
noun
  1. Plural of heterophony; multiple instances or types of musical texture where two or more voices simultaneously vary the same melody.
    • The ethnomusicologist studied various heterophonies in traditional folk songs.
    • The composer explored heterophonies by having each instrument play a slightly different version of the tune.
    • Different heterophonies can be heard in the overlapping vocal lines of the choir.