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quartz metronomeclick to hear

Metronome that translates the electric signal produced by a piece of quartz into sound or visual signals.
quartz metronome sound signal standard A light signal

sound signal click to hear

Device that translates the metronome’s electric signal into beeps; its volume can be controlled.

standard A click to hear

Reference note established as the international standard; its frequency is 440 Hz (440 vibrations per second).

light signal click to hear

Part that translates the electronic beats of the metronome into flashing light.