It is possible to perform with the keyboard of two octaves with a touch screen. The Multi-touch is possible. The tone that can be used are 128 tones(Piano, Sax, Guitar, Drum etc.) of General MIDI (GM), and 61 sounds of percussion of General MIDI (GM). The octave can be adjusted by eight stages. The performance that uses the actual key board can be done. If two or more terminals are used, the orchestra is not a dream.