User blog comment:Terrarian/idk if this is a glitch but..../@comment-4301259-20110831010947

Have you tried to save and quit, then go back into the world to see if it's the same? If a goblin army is appearing, and it's not just Goblin Scouts spawning, then it is indeed a glitch. I don't know about the music though, as I usually play my own music instead. Goblin Scouts spawn close to the edge of the map. The goblin army should only appear on random, and can't be forced. Also, you should always get several warnings before they appear.