18-year-old pizza deliveryman Bryce Dudal was dropping off a pepperoni pizza to the Varchetti family when he noticed a baby grand in their front hallway.

He asked if he could play them a tune and proceeded to stun them with a stirring rendition of the third movement of Beethoven’s famous Moonlight Sonata from memory.

Julie Varchetti, who recorded the performance, shared it on Facebook and the rest is history.