There is provided a player information-providing method capable of providing a result of an objective judgment on a user's performance skill level in playing a musical instrument to each user to thereby support the users e.g. for smooth organization of a band. A result of a judgment made on a performance skill level of a player by a performance skill level-judging device for judging a player's performance skill level is stored in a server. In response to access of a user terminal device to the server via the Internet, the result of the judgment made on the performance skill level of the player is transmitted to the user terminal device via the Internet.