harmonical vs harmony

harmonical is not a noun while harmony is a noun.

Word	Noun	Adjective	Verb	Adverb
harmonical	No	Yes	No	No
harmony	Yes	No	No	No

harmonical (noun)	harmony (noun)
	an agreeable sound property
	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

harmonical (adjective)	harmony (adjective)
involving or characterized by harmony