modulation vs musical passage

modulation and musical passage both are nouns.

Word	Noun	Adjective	Verb	Adverb
modulation	Yes	No	No	No
musical passage	Yes	No	No	No

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

Other hypernyms of modulation include passage.

modulation (noun)	musical passage (noun)
the act of modifying or adjusting according to due measure and proportion (as with regard to artistic effect)	a short section of a musical composition
(electronics) the transmission of a signal by using it to vary a carrier wave; changing the carrier's amplitude or frequency or phase
a musical passage moving from one key to another
rise and fall of the voice pitch
a manner of speaking in which the loudness or pitch or tone of the voice is modified