發送短信 : Extracting performance data from great piano performances - extraction of performance data

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