So, I love Resident Evil Revelations on the 3ds. The relevance of that statement is as follows:
On the 3DS home menu, a fanfare/sfx will play when you highlight something. The one for revelations sounds awesome to me. Therefore, I based an entire song starting with the 4-note riff. It has thus created, in less than 2 hours, a song of epic proportions (in length, and compared to some of my other stuff, in quality as well.)
In northern European mythology, the Horn of Ragnarok signifies the beginning of the end, or an Armageddon of sorts.