Patent ID: 7547841

Claim:
A music composition introduction system that extracts and introduces music composition information meeting a musical preference of each user of a plurality of users, the system comprising: a plurality of terminals for the users; and a center that manages music composition information, wherein each of the terminals includes: a storing unit that stores preference data relating to the musical preference of the user; an obtaining unit that obtains, from the center, music composition information data relating to a music composition that meets the preference data; a music reproducing unit that reproduces the music composition based on the obtained music composition information data; and a user-end communicating unit that sends the preference data to the center and receives the music composition information data from the center, wherein the center includes: a music composition information database that stores music composition information; a preference database that stores individual preference data for the users collected from the terminals; and a retrieving unit that (i) obtains the preference data that is stored in the storing unit of the terminal, (ii) performs, by referring to the preference database, a commonality determination as to whether there is a commonality between the obtained preference data and another preference data, and (iii) retrieves, from the music composition information database, music composition information based on the preference data and the another preference data when the commonality determination is affirmed; and a center-end communicating unit that sends the music composition information data corresponding to the retrieved music composition information to the terminal and receives the preference data from the terminals, wherein each of the terminals are provided in vehicles, and each of the vehicles comprises a navigation device for detecting a position of the each vehicle, wherein the user-end communicating unit transmits information on the detected position of the vehicle as well as the preference data to the center; and wherein the retrieving unit of the center: (i) obtains the preference data along with the information on the position, (ii) performs, by referring to the preference database, a commonality determination as to whether there is a commonality between the obtained preference data and another preference data while considering the information on the position of the vehicle, and (iii) retrieves, from the music composition information database, music composition information based on the preference data and the another preference data when the commonality determination is affirmed.