Bach JS Goldberg Variations Aria Glenn Gould.
As this conversation at NPR notes, the piece begins.
2.2.1.4 For 2 Trumpets and 2 Trombones (Rondeau) Bach - Goldberg Variations BWV 988-Aria da capo from Radio Classique: Grand Piano Radio Classique Coffret, CD1 3:46 0.12 String Quartet, Op. Bachs Goldberg Variations is often considered the most ambitious composition ever written for harpsichord.
