'This device uses an adjustable pendulum to indicate a given musical tempo either visually or aurally'
metronome
THE PENDULUM: This device uses an adjustable pendulum to indicate a given musical tempo either visually or aurally
This device uses an adjustable pendulum to indicate a given musical tempo either visually or aurally
This device uses an adjustable pendulum to indicate a given musical tempo either visually or aurally
THE PENDULUM
metronome
THE PENDULUM