The phrase "dances another tune" typically means that a person has changed their opinion or behavior, often in a negative or unexpected way. There are several synonyms for this expression, including "changes their tune," "sings a different song," and "shifts gears." Each of these phrases conveys the same idea of someone altering their stance or perspective. Other similar expressions include "does an about-face," "flips the script," and "swings in a new direction." No matter which synonym is used, the underlying meaning remains the same: someone who was once predictable or trustworthy has deviated from their usual course of action.