In a wagering game machine, operations and systems are disclosed for ending wagering game audio in a key of the current state. In one embodiment, the use of markers to denote the state of a music file enables following the continuous music and ending wagering game bang-up audio in whatever key the continuous music is in at the precise moment the bang-up ends. The continuous music, bang-ups and marker file are all started at the same time and may be the same length. The continuous music is audible, the bang-ups are heard by raising the volume when programmatically called for, and the marker file continuously sends out signals at a set rate which the code then interprets to determine the state of the song to trigger the appropriate musical ending. When the bang-up ends it can then be played in the key corresponding to the current state of the music.