PROBLEM TO BE SOLVED: To train input timing so as not to cause an order error of switching of lyrics between music parts by setting a certain input goal when time data is created by inputting a break per part of music, and to enable easily obtaining a program necessary for a synchronization display system with music from the outside.;SOLUTION: Accuracy in switching lyrics is improved by setting ending time of an interval after end of singing music as an input goal, and giving a higher input point when the ending time is closer to the input goal. A file in which data necessary for a synchronization display system such as time information on an interval per music is registered is stored in a database, which is downloaded and used and then deleted so as to be temporarily used.;COPYRIGHT: (C)2015,JPO&INPIT
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