The phrase "danced to a different tune" is often used to describe someone who is behaving or thinking in a way that is not typical or expected. There are many different synonyms that can be used to convey this same idea, including "marching to a different drummer," "swimming against the tide," "thinking outside the box," "going against the grain," "rebelling against convention," and "breaking from tradition." Each of these phrases highlights the idea that the person in question is doing something different from what others are doing, and may be doing so intentionally or unconsciously. By using these synonyms, writers and speakers can create a more nuanced and varied portrait of those who are charting their own course.