The sound of a glass harmonica is truly one-of-a-kind! This incredible instrument that creates ethereal sounds was made by Benjamin Franklin, and how beautiful does Mozart sound on it? (Credit: Royal Scottish National Orchestra) | Starts at 60

Mozart’s Adagio for Glass Armonica is a mesmerizing piece written for one of history’s most curious instruments: the glass harmonica, invented by Benjamin Franklin in 1761. Inspired by the practice of playing melodies on tuned glass goblets, Franklin refined the concept by mounting glass bowls of varying sizes on a rotating spindle. Musicians played it with moistened fingers, producing haunting, ethereal tones. The glass armonica quickly became a sensation, with composers like Mozart and Beethov