The following program will be presented this evening at the Pops concert in Symphony Hall, starting at 8.15 o'clock. Overture to "Cinderella"  Rossini Second Military March  Schubert-Caselia Song without Words  Tchaikovsky Roumanian Rhapsody  Enesco Overture "The Roman Carnival"  Berlioz Prehide to "Lohengrin"  Wagner Symphonic Poem "Les Preludes"  Liszt Ballet Music from "Gloconda"  Ponchielli Walt? No. 15  Brahms Gerieke Ride of the Valkyries from "The Valkyrie"  Waguer