The prog Genesis of the ‘70s were always in thrall to a good tune. So while there are furious theatrics, sudden dynamic shifts, and alternating stabs of light and shade dappling songs like “Dancing With the Moonlit Knight” and “Watcher of the Skies,” the drama is interspersed with winsome stretches of melodic beauty, borne up by Peter Gabriel's frail, smoky voice (“Supper's Ready”). These songs leap from the classical guitar filigrees of “Blood On the Rooftops” to the pop immediacy of “The Silent Sun” with riotous drum tattoos, stentorian keyboard refrains, and a storyteller's eye for tiny details.