| 摘要 |
<P>PROBLEM TO BE SOLVED: To assist a player playing a keyboard musical instrument by securely transmitting information to the player in safety high instantaneously. <P>SOLUTION: When a note-ON message including a value indicating a depressed key as a key value is inputted from a MIDI keyboard (104), it is decided whether the key value of the inputted note-ON message and timing of input of the note-ON message are correct (108, 110) and when the pitch that key value of the note-ON message indicates and the pitch of sound information of melody data are different from each other or when the difference in timing between the note-ON message and the sound information of the melody data is not within a designated range, a note-ON message including a value equal to the key value of the inputted note-ON message as a key value is generated and outputted to the MIDI keyboard (114). <P>COPYRIGHT: (C)2006,JPO&NCIPI |
