Patent ID: 7453038

Claim:
A musical piece extraction program stored in a computer-readable storage medium, the program causing a computer to perform a process comprising the steps of: detecting a musical piece likeliness of each piece of a plurality of processing-unit data that constitute input audio data; based on a result of the detection of the musical piece likeliness, identifying a musical piece candidate section within the input audio data; based on the musical piece candidate section and a musical piece information acquired from an external server, determining a musical piece section within the input audio data; recording the musical piece information onto a recording medium so as to be associated with the musical piece section; reproducing a plurality of partial audio data read from the recording medium, the partial audio data being a part of the input audio data that corresponds to the musical piece section with which the musical piece information is associated; and requesting, of a musical-piece-providing server, purchase of a musical piece data corresponding to the musical piece information with which the musical piece section is associated, if an instruction to purchase musical piece data is issued.