Logier's System of the Science of Music, Harmony, and Practical Composition

Whilst the greatest effort has been made to ensure the quality of this text, due to the historical nature of this content, in some rare cases there may be minor issues with legibility. 2. Sound is the product of aerial disturbances communicated to the tympanum of the ear, in intermittent shocks of such extreme rapidity of recurrence, as to produce the effect of a continuous tone.