11K views · 809 reactions | Variation 15 - nothing quite prepares you for this tragic G-minor following the Aria and first 14 variations all in joyous G-major. This heart-wrenching canon is on the inversion of a 5th, which means the alto leading voice is imitated a measure later by the soprano up a fifth and going always in the exact opposite direction. I know this sounds a bit scientific but once you get it there is no turning back! ☺️ | Víkingur Ólafsson | Facebook