Call the tune
Meanings of "Call the tune"
To be in charge, to give directions on actions to be taken.
Literally it applies to a director of music. A conductor calls the tunes for a symphony.
"Call the tune" in lyrics
Rings of smoke through the trees,
And the voices of those who standing looking.
And it's whispered that soon, if we all call the tune
Then the piper will lead us to reason.