Ludwig van Beethoven is the towering figure who bridged the Classical and Romantic eras of music. Perhaps the most remarkable fact of his life is that he composed his greatest works while profoundly deaf. By the time he wrote his Ninth Symphony (1824), he could no longer hear a single note of music. The Ninth was revolutionary, being the first symphony to include a choir and vocal soloists, culminating in the famous 'Ode to Joy.' Beethoven’s music was characterized by its emotional depth, structural innovation, and intense drama. His struggles with health, isolation, and his loss of hearing were channeled into his art, making him a symbol of the triumph of the human spirit. His works, from the Fifth Symphony's 'fate' motif to the 'Moonlight' Sonata, remain among the most performed and recognized pieces in the classical repertoire.