What is the noun from of word musical?

The Word 'musical' is the both an adjective and a noun.

The noun 'musical' is a Word for a play or motion picture in which the story line is interspersed with or developed by music and songs; a Word for a thing.

Examples:

The student has a natural musical ability. (adjective)

The song is from a Broadway musical. (noun)

The noun form of the adjective 'musical' is musicality.