Looks like the metal gods won't be the only Slayer on CD racks this fall. On Sept 24th, Mutant Enemy/Rounder will release Once More With Feeling, the soundtrack to last season's musical episode of Buffy the Vampire Slayer. "It was the hardest work I've ever done," says Buffy creator-exec producer Joss Whedon, who wrote the music and lyrics. He promises more tunes in a future installment of the Sarah Michelle Gellar series. "It's a flashback to the musical episode, and Anya [Emma Caulfield] has a ballad," he says. "Basically, we just wanted to hear Emma sing again."