發送短信 : Interactive sound generation using a multi-touch interface

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