polyphony vs concerted music

polyphony and concerted music both are nouns.

Word	Noun	Adjective	Verb	Adverb
polyphony	Yes	No	No	No
concerted music	Yes	No	No	No

As nouns, polyphony and concerted music are synonyms defined as:

polyphony and concerted music: music arranged in parts for several voices or instruments

Other synonyms of polyphony include polyphonic music.

polyphony (noun)	concerted music (noun)
music arranged in parts for several voices or instruments	music arranged in parts for several voices or instruments