noun
heterophony
A musicological term for a texture where two or more voices simultaneously perform variations of the same melody.
ヘテロフォニーは、伝統的な日本音楽や東南アジアの音楽でよく見られる。
Heterophony is often found in traditional Japanese music and Southeast Asian music.
Borrowed from English 'heterophony', ultimately from Greek 'hetero-' (different) + 'phōnē' (sound, voice).