There have been many attempts to adapt Herman Melville’s classic novel Moby Dick into other media. Who knew that four weirdos from Savannah, Georgia would crack the code by turning it into a concept album that combines prog rock, sludge, southern rock, post-metal, and hardcore? And that it would be insanely catchy? Unlike Ahab’s doomed quest, Mastodon’s hunt for the White Whale succeeded beyond their wildest dreams.