demisemiquaver vs musical note

demisemiquaver and musical note both are nouns.

Word	Noun	Adjective	Verb	Adverb
demisemiquaver	Yes	No	No	No
musical note	Yes	No	No	No

As nouns, musical note is a hypernym of demisemiquaver; that is, musical note is a word with a broader meaning than demisemiquaver:

demisemiquaver: a musical note having the time value of a thirty-second of a whole note
musical note: a notation representing the pitch and duration of a musical sound

Other hypernyms of demisemiquaver include note, tone.

demisemiquaver (noun)	musical note (noun)
a musical note having the time value of a thirty-second of a whole note	a notation representing the pitch and duration of a musical sound