| 摘要 |
PROBLEM TO BE SOLVED: To provide an information sorting device which can sort a musical composition corresponding to user's taste or its transition when the musical composition in musical information, for example, is reproduced. SOLUTION: A MD device 1 for rearranging plural kinds of musical compositions according to a certain criterion is provided with a CPU 11 for rearranging the musical compositions in consideration of use frequency and used frequency in the past of each musical composition.
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