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 _    _     ______    ____       ___     _    _   
| \  / ||  /_   _//  |  _ \\    / _ \\  | \  / || 
|  \/  ||   -| ||-   | |_| ||  | / \ || |  \/  || 
| .  . ||   _| ||_   | .  //   | \_/ || | .  . || 
|_|\/|_||  /_____//  |_|\_\\    \___//  |_|\/|_|| 
`-`  `-`   `-----`   `-` --`    `---`   `-`  `-`

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Text this: A Contribution to Teaching Vietnamese Music: Key Pitches in Context and the Pitch/intensity Contour Graph