| 摘要 |
PROBLEM TO BE SOLVED: To prevent a user from accidentally reserving a musical piece which is impossible to be reproduced by a Karaoke device. SOLUTION: A musical piece database 131 which the Karaoke device 1 stores in a storage section 13 includes a storage location where content data of an individual Karaoke musical piece are stored, and read availability information for expressing whether or not the content data are read from the storage location as an attribute item. The CPU 10 periodically acquires a storage state and a network state (Step S2), to determine whether or not the content data are read from each storage location from the acquisition result (Step S3). The CPU 10 updates read availability information of the musical piece database 131 based on the determination result (Step S4). The CPU 10 extracts and displays only data in which the read availability information is normal, when a search result is displayed on a touch panel 141. COPYRIGHT: (C)2011,JPO&INPIT |
