| 摘要 |
The purpose of the invention is to control background music according to progress in a game in a manner that does not feel unnatural to the user. A video game processing device stores musical composition information indicating a musical composition which is composed of multiple tracks and can be played back in multiple types of playback states by any combination of one or more tracks being played back, stores musical composition playback state information indicating playback states for the musical composition corresponding to game point values, starts playback in a playback state corresponding to a game point value, plays back the musical composition indicated by the musical composition information, updates the game point value in accordance to progress in the video game, refers to the updated game point value and the musical composition playback modality information to assess whether or not to update the playback state the musical composition being played back, and updates the playback state for the musical composition being played back to a playback state corresponding to the updated game point value in accordance with an assessment to update the playback state. |
