fidelity vs quality

fidelity and quality both are nouns.

Word	Noun	Adjective	Verb	Adverb
fidelity	Yes	No	No	No
quality	Yes	Yes	No	No

As nouns, quality is a hypernym of fidelity; that is, quality is a word with a broader meaning than fidelity:

fidelity (noun)	quality (noun)
the quality of being faithful	an essential and distinguishing attribute of something or someone
accuracy with which an electronic system reproduces the sound or image of its input signal	(music) the distinctive property of a complex sound (a voice or noise or musical sound)
	a degree or grade of excellence or worth
	a characteristic property that defines the apparent individual nature of something
	high social status

fidelity (adjective)	quality (adjective)
	of superior grade
	of high social status