When is a cover song better than the original? Only you can decide. This week: The Polyphonic Spree takes on Nirvana’s “Lithium.” MAGNET’s Edward Fairchild pulls the pin. Take cover! Tim DeLaughter and his cult share the Kool-Aid and cast some sunshine on “Lithium,” Kurt Cobain’s dark ode to finding religion as a last resort. … Continue reading Take Cover! The Polyphonic Spree Vs. Nirvana