Change your tune

Meaning

Shift one's attitude, often toward a previously opposed idea.

Usage

Used when someone becomes more agreeable or cautious.

Origin & History

Origins and dates here are approximate summaries. Many idioms have disputed or unknown origins, and not every date has been checked against a historical dictionary, so treat specific dates and stories as a starting point rather than a citation.

Music metaphor for switching melodies to signal new feelings.

Used since at least the 19th century in theatrical contexts and later everyday speech.