The Nick Cave canon is as dense and unforgiving as the scriptures from which he's spun so many of his brimstone-carved tales. From the gonzo goth of The Birthday Party's “Release the Bats” to 2003's unrelenting “Babe, I'm on Fire,” these incendiary invectives aren't for the faint of heart—but soothing serenades like “Rock of Gibraltar” could mend a broken one.