crotchet vs quirkiness

crotchet and quirkiness both are nouns.

Word	Noun	Adjective	Verb	Adverb
crotchet	Yes	No	No	No
quirkiness	Yes	No	No	No

As nouns, crotchet and quirkiness are synonyms defined as:

Other synonyms of crotchet include oddity, queerness, quirk.

crotchet (noun)	quirkiness (noun)
a small tool or hooklike implement	a strange attitude or habit
a strange attitude or habit
a musical note having the time value of a quarter of a whole note
a sharp curve or crook; a shape resembling a hook