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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