Definition of change one's tune
- He bragged that the test was easy, but when he saw his grade he changed his tune.
: to make different in some particular : alter
: to make radically different : transform
: to give a different position, course, or direction to
: the act, process, or result of changing: such as
: a pleasing succession of musical tones : melody
: a dominant theme
: correct musical pitch or consonance
: to adjust in musical pitch or cause to be in tune
: to bring into harmony : attune
: to adjust for precise functioning
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