(Music)a wavering effect in a musical tone, produced either by rapid reiteration of a note, by rapid repeated slight variation in the pitch of a note, or by sounding two notes of slightly different pitches to produce prominent overtones (乐)震音,颤音。 比较vibrato ■a mechanism in an organ producing such an effect 管风琴震音音栓 ■(亦作 tremolo arm)a lever on an electric guitar, used to produce such an effect 电吉他震音杆