Publisher's Synopsis
Excerpt from Handbook of Acoustics (Curwen's Edition, 5005;): For the Use of Musical Students
The cause of the sensation sound, is motion. A musical sound is one which remains steadily at a definite pitch. A musical sound originates in the periodic motion of some body.
A periodic or regular vibratory motion will always give rise to a musical sound, if the vibrations recur with sufficient, but not too great rapidity, and provided they are extensive enough.
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