touch a chord vs arouse

touch a chord and arouse both are verbs.

Word	Noun	Adjective	Verb	Adverb
touch a chord	No	No	Yes	No
arouse	No	No	Yes	No

As verbs, arouse is a hypernym of touch a chord; that is, arouse is a word with a broader meaning than touch a chord:

Other hypernyms of touch a chord include elicit, enkindle, evoke, fire, kindle, provoke, raise.

touch a chord (verb)	arouse (verb)
evoke a reaction, response, or emotion	cause to be alert and energetic
	cause to become awake or conscious
	stop sleeping
	summon into action or bring into existence, often as if by magic
	call forth (emotions, feelings, and responses)
	to evoke sexual feelings
	to begin moving