harmoniëren, in harmonie brengen, afstemmen

harmonise(verb)

to sing or play musical instruments in harmony.

harmoniëren, in harmonie brengen, afstemmen

harmonise(verb)

to add different parts to (a melody) to form harmonies.

harmoniëren, in harmonie brengen, afstemmen

harmonise(verb)

to (cause to) be in harmony or agreement

The colours in this room harmonize nicely.