C major vs scale of C major

C major and scale of C major both are nouns.

Word	Noun	Adjective	Verb	Adverb
C major	Yes	No	No	No
scale of C major	Yes	No	No	No

As nouns, C major and scale of C major are synonyms defined as:

C major and scale of C major: (music) the major scale having no sharps or flats

Other synonyms of C major include C major scale.

C major (noun)	scale of C major (noun)
(music) the major scale having no sharps or flats	(music) the major scale having no sharps or flats