metronome [1]![click to hear](/images/speaker.jpg)
Spring-activated pendular instrument whose beats can be synchronized with the tempo of a piece of music while practicing.
sliding weight ![click to hear](/images/speaker.jpg)
Adjustable weight that is moved along the pendulum bar to regulate the frequency of the beats.
tempo scale ![click to hear](/images/speaker.jpg)
Scale calibrated to a number of beats per minute (40 to 208) and used to match the tempo of a given piece of music (adagio, allegro, vivace and so forth).
pendulum bar ![click to hear](/images/speaker.jpg)
Metal rod that oscillates from one side of an axis to the other to produce a sound signal.
case ![click to hear](/images/speaker.jpg)