Following is the program for the Pop Concert at Symphony Hall this evening: First Appearance of Conductor Gustav Strube. 1 March, "Queen of Sheba," Gounod 2 Overture, "Merry Wives of Windsor," Nicolai 3 Waltz, "Freut euch des Lebens," Strauss 4 Fantasy from "The Huguenots," Meyerbeer 5 Hungarian Rhapsody, No. 2, Liszt 6 Valse and Pizzicato from Ballet Music, "Sylvia," Delibes 7 Andacht for Violin, Harp and Organ, Johnson 8 Bacchanale from "Samson and Delilah," Saint-Saens 9 Overture, "La Gazza Ladra," Rossini 10 a. Album Leaf, Strube b. Dalliance, Strube 11 Selection, "Yankee Consul," Robyn 12 March, "King Karl," Unrath