Abstract: An in-game interface for a music video game includes one or more feedback mechanisms configured to provide feedback to a player relating to the player's performance of the music video game. A compare module compares the player's performance with a reference performance provided by the music video game. A performance evaluation module determines the performance feedback to be presented to the player while the player performs the musical composition. In some embodiments, the player's pitch and rhythm are compared against a reference pitch and rhythm. If the player's pitch and rhythm matches the reference pitch and rhythm to within a predetermined target range, then the performance feedback is positive. Otherwise, the performance feedback is negative.

Abstract: A method for allowing a player of a video game to control a three-dimensional game character in a three-dimensional game world includes the steps of acquiring video image data of a player of a game, analyzing the acquired video image data to identify the location or movement of a portion of the player's body; and using the identified location of the portion of the player's body to control behavior of a game character.

Abstract: A method for providing real-time musical interaction among a plurality of players connected via a network includes the steps of analyzing local player's musical performance to extract emulation data that represents the musical performance; transmitting emulation data to remote players over a network; receiving emulation data from remote players over the network; and using the emulation data to emulate the remote player's musical performance by locally generating approximations of the performances.

Abstract: A method for providing real-time musical interaction among a plurality of players connected via a network includes the steps of analyzing local player's musical performance to extract emulation data that represents the musical performance; transmitting emulation data to remote players over a network; receiving emulation data from remote players over the network; and using the emulation data to emulate the remote player's musical performance by locally generating approximations of said performances.

Abstract: A method for displaying musical data in three dimensions includes displaying musical data along a spatial path that does not lie within the image plane of a display. Graphical symbols corresponding to the musical data may be displayed on graphical surfaces aligned with the spatial path. The graphical surfaces form, in some embodiments, a tunnel through which the time axis associated with the musical data runs. The musical data may be manipulated to provide the viewer with the appearance of motion along the time axis associated with the musical data. In some embodiments, the viewer is represented by a virtual camera in the three-dimensional environment and the virtual camera is “moved” to provide the appearance of motion. A corresponding apparatus is also discussed.

Abstract: Described are a system and method for achieving near real-time musical collaboration by a group of users using computers connected by a network. Each computer system plays a stream of musical data to each user. The musical data stream played to each user corresponds to the musical collaboration produced by the users. The playing of the musical data streams is staggered such that each user is located at a different time in the musical collaboration than every other user. This staggering separates any two users by a temporal offset that exceeds the maximum time required to transmit musical data from one user to another user over the network. Each user is allowed to modify the portion of the musical data stream that is currently being played to that user. Such musical data modifications are transmitted to other users over the network to become incorporated into the musical data streams played to those other users.