When Does Interactive Music Occur

Multiple Choice

When does interactive music occur?

A) When the interaction is between the player and other aspects of the game design such as visuals and game mechanics
B) When one piece of music fades out and another may or may not begin afterward
C) When a trigger of musical phrases occurs end to end, so as one piece is ending, the next piece begins
D) When a player is making game-play decisions based on what he/she consciously hears in the music