1. An updating system of music information comprising: a broadcasting apparatus having a broadcasting side memory unit for storing music information including at least one of track data and music database information and a transmission unit for broadcasting the music information on a predetermined broadcast channel and a terminal having a reception unit for receiving a broadcast wave of said predetermined broadcast channel, an extraction unit for extracting said music information from the received broadcast wave, and an update unit for updating the music information in a reception side memory unit with the extracted music information, said update unit once holds the music information or a newly added difference in music information transmitted from said broadcasting apparatus side constantly repeated or periodically on predetermined days and, when detecting that it is not the same as the already received information, stores the information in said reception side memory unit, and said update unit extracts the music information which is not recorded in the reception side memory unit from the received music database information as the difference in music information and stores the same in the reception side memory unit, wherein said predetermined broadcast channel is: either of a specific channel in radio broadcasts, a specific channel in TV broadcasts, or a specific channel in digital broadcasts and said music database information is comprised of identifying information for identifying the recording media and music menu information corresponding to the identifying information, and the music menu information includes at least one of title names, album names, artist names, and genres.