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            _____    _    _      ___      _____   
    ___    |  ___|| | \  / ||   / _ \\   /  ___|| 
   /   ||  | ||__   |  \/  ||  / //\ \\ | // __   
  | [] ||  | ||__   | .  . || |  ___  ||| \\_\ || 
   \__ ||  |_____|| |_|\/|_|| |_||  |_|| \____//  
    -|_||  `-----`  `-`  `-`  `-`   `-`   `---`   
     `-`

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Text this: The physics and psychophysics of music : an introduction. (4th ed.)