There's something so epic about the blowing of a great horn before battle. I guess I should also admit I played the tuba in high school and college, so I suppose I feel a personal affinity for Heimdall the god of horn players!
Voluspa - Norse Mythology Book - Verse 46
“ Fast move the sons | of Mim, and fate
Is heard in the note | of the Gjallarhorn;
Loud blows Heimdall, | the horn is aloft,
In fear quake all | who on Hel-roads are.”