harmonize >> ˈhɑːmənʌɪz
Definition: [verb] add notes to (a melody) to produce harmony.
Example: we harmonize a scale using only the notes from that particular key
Definition: [verb] produce a pleasing visual combination.
Example: the containers harmonize in colour, texture, and shape with the flowers they display
Definition: [verb] make consistent or compatible.
Example: the economic group founded to harmonize national development plans