untune vs modify

untune and modify both are verbs.

Word	Noun	Adjective	Verb	Adverb
untune	No	No	Yes	No
modify	No	No	Yes	No

As verbs, modify is a hypernym of untune; that is, modify is a word with a broader meaning than untune:

Other hypernyms of untune include alter, change.

untune (verb)	modify (verb)
cause to be out of tune	make less severe or harsh or extreme
cause to lose one's composure	add a modifier to a constituent
	cause to change; make different; cause a transformation