Ludwig van Beethoven, one of the most celebrated composers in the history of classical music, led a fascinating and influential life. Here are ten intriguing facts about this musical genius: 1. Deafness: Beethoven's gradual loss of hearing began in his late twenties and ultimately led to near-complete deafness. Remarkably, he continued to compose some of his most famous works, like the Ninth Symphony, while unable to hear the music he was creating.