harmonise vs relate

harmonise and relate both are verbs.

Word	Noun	Adjective	Verb	Adverb
harmonise	No	No	Yes	No
relate	No	No	Yes	No

As verbs, relate is a hypernym of harmonise; that is, relate is a word with a broader meaning than harmonise:

harmonise (verb)	relate (verb)
bring into consonance, harmony, or accord while making music or singing	make a logical or causal connection
bring into consonance or accord	give an account of; narrate
bring (several things) into consonance or relate harmoniously	have or establish a relationship to
sing or play in harmony	be relevant to
write a harmony for	be in a relationship with
go together