* One single independent melodic line without accompaniment
>Examples: Gregorian chant, some folk songs
Heterophony
* One main melodic line with one or more accompanying parts playing slight variations at the same time
>Examples: Early Renaissance music, some traditional musics
Homophony
* Two or more parts moving together in the same rhythm; the main melody with subordinate lines
>Examples: Most hymns, pop songs, some marches
Polyphony
* Two or more independent melodic lines played simultaneously
>Examples: Renaissance and Baroque music, fugue, rounds