Musical director George Bassman, orchestra conducted by Max Rudolph of the Metropolitan Opera; stage concert with 13 of world's top opera singers and musicians, each performing a single number; the performers included baritone Leonard Warren (""Prologue"" from Leoncavallo's ""Pagliacci""), tenor Jan Peerce (""Vesti La Giubba"" from Leoncavallo's ""Pagliacci""), violinist Isaac Stern (lst movement of Mendelssohn's ""Violin Concerto in E Minor""), soprano Zhinka Milanov (""Vissi d'Arte"" from Puccini's ""Tosca""), coloratura soprano Roberta Peters (""The Doll Song"" from Offenbach's ""Tales of Hoffman""), cellist Gregor Piatigorsky (""Adagio and Rondo for Cello and Orchestra"" by Carl Maria Von Weber), contralto Marian Anderson (""Beautiful City,"" ""Poor Me,"" ""He's Got the Whole World in His Hands""), mezzo-sopranos Blanche Thebom and Mildred Miller (""Barcarolle"" duet from Offenbach's ""Tales of Hoffman""), mezzo-soprano Rise Stevens (""Card Song"" from Bizet's ""Carmen""), tenor Jussi Bjoerling (""Che Gelida Manina""