Here we have one of the few songs that plays in all four seasons for a dungeon -- and what could be more fitting than it being a mountain! In season 1, where the song is first heard, one group of two heads over the pass between the southern and northern halves of Celestion with a detachment of men, to deal with the upcoming war -- later, a second group of two crosses the same path in pursuit of a kidnapped girl, and some possibly lucrative papers.
Later, in season 2, a (somewhat) different party ascends the tallest peak on the southern part of the B'yada continent in order to find out where a large group of mysterious, brainwashed folk have wandered from, and in season 3, a (larger) party must climb down a mountain after a train robbery. Season 4, we'll see. :3
Link
Tiido
Beginning sounded like it is going to be a goofy tune, but as I listened it had all other stuff too in it... lot of awesome stuff !