 Among the guest artists who appeared with the company in the 1970s were the baritone Tito Gobbi , as Falstaff ( 1972 ) , the sopranos Elisabeth Söderström as Emilia in The Makropoulos Case ( 1978 ) and Anne Evans as Senta in The Flying Dutchman ( 1972 ) , and the conductors James Levine ( Aida , 1970 ) and Reginald Goodall ( Tristan and Isolde , 1979 ) . 
