Section outline

  • Sound is mechanic vibration that oscillates at a frequency within the range of the (human) ear. 

    Recurrent, regular pressure variations produce distinct tones with an observable musical pitch. 

    Pitch is the quality that makes it possible to judge sounds as "higher" and "lower" in the sense associated with musical melodies. 

    There are four fundamental properties of musical tones: pitch, duration, loudness/dynamics and timbre/tone color.