[MASS NOUN] The combination of simultaneously sounded musical notes to produce a pleasing effect:
the piece owes its air of tranquillity largely to the harmony
[COUNT NOUN]: an exciting variety of improvised harmonies
The quality of forming a pleasing and consistent whole:
delightful cities where old and new blend in harmony
The state of being in agreement or concord:
man and machine in perfect harmony
2An arrangement of the four Gospels, or of any parallel narratives, which presents a single continuous narrative text.