Synonyms of change one's tune in English:

change one's tune

See definition of change one's tune


1‘by the following week, she had changed her tune’

change one's mind, think differently, express a different opinion, express a different view, sing a different song, sing a different tune, shift one's ground, do a U-turn, row back, march to the beat of a different drum, have a change of heart
British do an about-turn