Music doesn't resume after enemy despawns

[FragdaddyXXL]

PlayMusic("Threnody for the victims of Hiroshima", false, 0.8f, 0.1f, 0, true);

My music begins after interaction with a script box. Now, when the monster is active, naturally the enemy music begins to play. When he despawns, the enemy music stops, but my music does not resume. It's kinda lame because this is a ~8min piece.