A
system, computer readable storage medium, and method for communicating musical data over a network, comprising: connecting one or more player modules to a network; providing an unassigned channel of prerecorded music data; providing an assigned channel of prerecorded music data; displaying the assigned channel; playing the unassigned channel while not playing the assigned channel; converting musical performance to music performance data; evaluating the music performance data in regard to the assigned channel; and simultaneously delivering a representation of the evaluation over the network. There may also be a
graphical user interface, including a
virtual instrument positioned substantially at a top portion of the graphical interface. Additionally, included are pluralities of musical notes in sequence, having a rhythmic pattern, each note being represented by a game object, wherein the game objects are directed upward, in substantially straight trajectories, toward the virtual keys on the virtual
musical instrument corresponding to the musical notes.