Music reproducing apparatus, method, recording medium, and an integrated circuit

Operation information acquisition unit of the music playback device acquires operation information corresponding to a user operation indicating an instruction for operation of the reproducing unit for reproducing the music data. Music selection condition calculation unit, reproducing unit while changing the relative merits of the attribute information relating to the music data in accordance with the content of the operation information acquired operation information acquisition unit while playing music data, reproduced based on the relative merits of these attribute information part is to calculate the conditions under which music selection music data to be reproduced. The relative merits of the attribute information which is information relating to music data, is changed based on the operation information of the user, for music selection based on the relative merits of these attribute information is performed, to reproduce only desired tracks by a simple operation of the user can.