Mozart died at age 35. I often imagine what music would be like if he had lived another 20 or 30 years.
Mozart died on December 5, 1791 and was buried on Dec 6. He is the greatest melody maker in the history of music, and arguably the greatest composer in history, having mastered all musical genres of his time (symphonies, concertos, dances, opera, serenades, and masses).
And Schubert died even younger than him: two distinct musical prodigies who left their mark on the world in a fraction of the time it took other composers.