It's music from the movies by John Williams on the April 11th broadcast.
4/4 Brahms: Piano Concerto No. 2 Tchaikovsky: Symphony No. 6 (Rudolf Buchbinder, p; New York Philharmonic; Alan Gilbert, cond)
4/11 Williams: Excerpts from Close Encounters of the Third Kind, Cello Concerto, Pickin’, Sound the Bells!, Suite from Far and Away, Suite from Harry Potter and the Sorcerer’s Stone, Theme from Schindler’s List, Adventures on Earth from E.T.: The ExtraTerrestrial (Yo-Yo Ma, c; Houston Symphony Orchestra; John Williams, cond)
4/18 Rachmaninov: Piano Concerto No. 2 Shostakovich: Festival Overture Poulenc: Gloria (Kaia Urb, s; Alexander Gavrylyuk, p; Estonian Philharmonic Chamber Chorus; Estonian National Symphony Orchestra; Mikko Franck, cond)
4/25 Ligeti: Melodien Schumann: Symphony No. 1, Spring Brahms: Piano Concerto No. 1 (Emanuel Ax, p; Los Angeles Philharmonic; Robin Ticciati, cond)