| 摘要 |
PROBLEM TO BE SOLVED: To actualize technology for displaying a displace place corresponding to the progress state of a performance without any manual complicated operation. SOLUTION: The document display device 10 displays a musical score, etc., based upon document data. The document data are data used to display the musical score and also data which specify the heights, lengths, etc., of notes represented on the musical score. A synchronization part 22 specifies a playing place by contrasting inputted progress state data of the performance with the document data. The musical score corresponding to the specified place is displayed while preference is given to a switching indication inputted through a network to display the musical score in synchronism with the performance without any switching operation. |
