sixty-fourth note vs hemidemisemiquaver

sixty-fourth note and hemidemisemiquaver both are nouns.

Word	Noun	Adjective	Verb	Adverb
sixty-fourth note	Yes	No	No	No
hemidemisemiquaver	Yes	No	No	No

As nouns, sixty-fourth note and hemidemisemiquaver are synonyms defined as:

sixty-fourth note and hemidemisemiquaver: a musical note having the time value of a sixty-fourth of a whole note

sixty-fourth note (noun)	hemidemisemiquaver (noun)
a musical note having the time value of a sixty-fourth of a whole note	a musical note having the time value of a sixty-fourth of a whole note