A1-21.HTML
A1-21: METRONOME

PURPOSE: To tick off equal intervals of time.

DESCRIPTION: Mechanical metronome beats at rates between 40 and 208 clicks per minute.

SUGGESTIONS: Should be kept level for best accuracy.

REFERENCES: (PIRA 1A10.40 )

EQUIPMENT: Metronome, as photographed.

SETUP TIME: 10 min.


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