Grunge shared more with classic rock than some of the genre’s stars might have cared to admit, full of shout-along choruses, big riffs and guitar heroics. The pituitary effect, though, is profoundly different, though, inducing fear, anger and dread; the rafter-raising joy of stadium rock has been tuned down and turned ugly. Grunge’s Big Four offer different flavors of angst: Alice In Chains’ near-hair-metal cockiness, Soundgarden’s heavy psychedelia, Nirvana’s scalding anger and Pearl Jam’s compassion and empathy. Gen X either didn’t understand how good they had it, or knew exactly what was coming.