Song of my childhood: The Velvet Underground’s “Venus in Furs”. When I was little, my siblings thought it was funny to make me go around in my Wellingtons singing, “shiny boots of leather.” Song for a bad mood: Brünnhilde’s last aria in Die Götterdämmerung, by Richard Wagner. Dance song: “Knee Play 5,” from Philip Glass’s Einstein on the Beach. It’s hypnotic. Guilty-pleasure song: Anything by Abba.