"Call the tune" is a phrase that means to be in control or to be the one making the decisions. Some synonyms for this expression include "calling the shots," "running the show," "wearing the pants," "having the upper hand," "having the final say," and "being in charge." These expressions signify that an individual or group is responsible for determining the outcome of a situation or event. Whether it is in a personal or professional context, someone who "calls the tune" is generally regarded as being in a position of power or authority. These synonyms help illustrate the various ways this concept can be expressed in everyday language.