singing vs musical

singing and musical both are nouns.

Word	Noun	Adjective	Verb	Adverb
singing	Yes	Yes	No	No
musical	Yes	Yes	No	No

singing (noun)	musical (noun)
the act of singing vocal music	a play or film whose action and dialogue is interspersed with singing and dancing
disclosing information or giving evidence about another

singing (adjective)	musical (adjective)
smooth and flowing	characteristic of or resembling or accompanied by music
	talented in or devoted to music
	containing or constituting or characterized by pleasing melody
	characterized by or capable of producing music