harmonization

noun

music term; the chordal accompaniment to a line or melody

Wiktionary

noun

Etymology: Etymology tree English harmonize Proto-Indo-European *-tis Proto-Indo-European *-Hō Proto-Indo-European *-tiHō Proto-Italic *-tiō Latin -tiō Latin -ātiōlbor. Old French -ationbor. Middle English -acioun English -ation English harmonization From harmonize + -ation.

An act of harmonizing.