solmisation vs musical notation

solmisation and musical notation both are nouns.

Word	Noun	Adjective	Verb	Adverb
solmisation	Yes	No	No	No
musical notation	Yes	No	No	No

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

solmisation: a system of naming the notes of a musical scale by syllables instead of letters
musical notation: (music) notation used by musicians

solmisation (noun)	musical notation (noun)
a system of naming the notes of a musical scale by syllables instead of letters	(music) notation used by musicians