In a music information processing apparatus, a characteristic quantity acquiring unit reads out a music file from a music tune file storage unit and acquires a characteristic quantity of a music tune. A class value providing unit provides a class value for each music tune based on the characteristic quantity. The distribution acquiring unit forms a music tune assembly based on bibliography information read from the music tune file by a bibliography information acquiring unit, and acquires the distribution information of class values for each music tune assembly. The distribution information is stored into an analysis result storage unit, and an evaluation unit reads out distribution information based on user input, and evaluates the similarity between music tune assemblies or between a tune and a music tune assembly. An output unit recommends or reproduces a music tune assembly or a music tune according to the preference of a user.