call the tune vs call the shots

call the tune and call the shots both are verbs.

Word	Noun	Adjective	Verb	Adverb
call the tune	No	No	Yes	No
call the shots	No	No	Yes	No

As verbs, call the tune and call the shots are synonyms defined as:

Other synonyms of call the tune include wear the trousers.

call the tune (verb)	call the shots (verb)
exercise authority or be in charge	exercise authority or be in charge