Johann Sebastian Bach - Goldberg Variations, for keyboard (Clavier-Übung IV), BWV 988 (BC L9), 1741 Glenn Gould, CBS, Sony, 1981. Movements: 1. Aria 2. Variation 1 a 1 clavier 3. Variation 2 a 1 clavier 4. Variation 3. Canone all'unisono a 1 clavier 5. Variation 4 a 1 clavier 6. Variation 5 a 1 ovvero 2 claviere 7. Variation 6. Canone alla seconda a 1 clavier 8. Variation 7 a 1 ovvero 2 claviere 9