verb (modulat, ing)
- (transitive) To regulate, adjust or adapt
- (transitive) To change the pitch, intensity or tone of one's voice or of a musical instrument
- (transitive) (electronics) to vary the amplitude, frequency or phase of a carrier wave in proportion to the amplitude etc of a source wave (such as speech or music)
- (context, intransitive, music) to move from one key or tonality to another, especially by using a chord progression
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