symphony vs symphonic music

symphony and symphonic music both are nouns.

Word	Noun	Adjective	Verb	Adverb
symphony	Yes	No	No	No
symphonic music	Yes	No	No	No

As nouns, symphony and symphonic music are synonyms defined as:

symphony and symphonic music: a long and complex sonata for symphony orchestra

symphony (noun)	symphonic music (noun)
a long and complex sonata for symphony orchestra	a long and complex sonata for symphony orchestra
a large orchestra; can perform symphonies