An operational information obtaining section of a music reproduction device obtains operational information which corresponds to a user's operation and represents an instruction on an action of a reproduction section for reproducing data of a musical composition. A selection condition calculation section changes, during the musical composition being reproduced by the reproduction section, relative merits of attribute information relating to the data of the musical composition in accordance with details of the operational information obtained by the operational information obtaining section, and then calculates, based on the relative merits of the attribute information, a condition for selecting the data of the musical composition to be reproduced by the reproduction section. The relative merits of the attribute information, which is information relating to the data of the musical composition, is changed in accordance with the user's operational information, and selection is performed in accordance with the relative merits of the attribute information, whereby it is possible, with the user's simple operation, to reproduce only the musical composition which is desired to be listened to.