Discovered Treasures (1962-1972): Previously unreleased studio recordings by Vladimir Horowitz Tracks Etude, Op. 65, No. 3 (Instrumental) Prelude in D-flat Major, Op. 28, No. 15 "Raindrop" Sonata in B-Flat Major for Piano, Op. 25, No. 3: II. Rondo - Vivace Sonata in F-sharp minor, K. 25 (L. 481) Sonata in G Major, K. 547 (L. S28) (Instrumental)