PROBLEM TO BE SOLVED: To easily create music imparted with various sound effects.;SOLUTION: Through music material editing services, composite music materials are created by entering a plurality of music materials to a music material composition field on an editing picture. When the composite music materials are created by using these services, a user can discriminatingly specify an insertion effect to be imparted to only the composite music materials and a system effect to be imparted to all music materials including the composite music materials.;COPYRIGHT: (C)2007,JPO&INPIT
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