IPA: /ˌhɛtəˈrɒfəni/
KK: /hɛtəˈrɑfəni/
The occurrence of multiple voices or instruments playing or singing different versions of the same melody at the same time.
In the performance, the musicians created a beautiful heterophony that enriched the melody.
Heterophony → It is formed from "hetero-" (from Greek "heteros", meaning different) and "phone" (from Greek "phone", meaning voice or sound). The word describes a musical texture where different variations of a single melody are played simultaneously, hence the idea of different sounds or voices.
Think of 'different' ('hetero-') sounds or 'voices' ('phone') being played together — that's what heterophony means.