harmony vs sound property

harmony and sound property both are nouns.

Word	Noun	Adjective	Verb	Adverb
harmony	Yes	No	No	No
sound property	Yes	No	No	No

As nouns, sound property is a hypernym of harmony; that is, sound property is a word with a broader meaning than harmony:

harmony (noun)	sound property (noun)
an agreeable sound property	an attribute of sound
compatibility in opinion and action
agreement of opinions
the structure of music with respect to the composition and progression of chords
a harmonious state of things in general and of their properties (as of colors and sounds); congruity of parts with one another and with the whole