So what’s with all the head-banging bookworms? Brazilian heavy-metal band Sepultura released Dante XXI, an album based on Dante’s Divine Comedy. And Mastodon recently became metal’s newest stars with Leviathan, a Moby Dick-inspired album with songs such as “I Am Ahab” and “Seabeast.” With its preoccupation with evil, dry ice and alternately shrieking and growling vocals, heavy metal has come by its goofball image honestly. But wearing leather and spikes doesn’t mean you don’t crack open a book occasionally. [More]