metrics vs prosody

metrics and prosody both are nouns.

Word	Noun	Adjective	Verb	Adverb
metrics	Yes	No	No	No
prosody	Yes	No	No	No

As nouns, metrics and prosody are synonyms defined as:

metrics and prosody: the study of poetic meter and the art of versification

metrics (noun)	prosody (noun)
the study of poetic meter and the art of versification	the study of poetic meter and the art of versification
	the patterns of stress and intonation in a language
	(prosody) a system of versification