Definition of pentatonism in English:

pentatonism

noun

Music
  • The quality of being pentatonic; the property of consisting mostly or entirely of notes from a pentatonic scale.

Origin

1930s. From pentaton- + -ism. Compare German Pentatonik.

Pronunciation

pentatonism

/ˌpɛntəˈtəʊnɪz(ə)m/