A rhythm game control apparatus for controlling progress of a rhythm game is provided. Basic music score information indicating a basic music score on which a trigger arrangement permissible mark is arranged and music score information indicating a music score are stored. A display device is caused to display a music score editing screen on which the basic music score can be edited. The trigger is arranged on the basic music score in accordance with a trigger arranging request received from a player when an arranging request position of the trigger by the trigger arranging request is an arrangement permissible position at which a trigger arrangement permissible mark is arranged. The music score information is registered in the music score information memory indicating the music score for which the trigger is arranged on the basic music score and the basic music score is thereby edited.