Ludwig van Beethoven (1770-1827) was a German composer and pianist who represented a turning point between classicism and romanticism in musical style. He expanded classical forms and added emotional expression and drama. As he lost his hearing, his later works grew more passionate and explored broad ranges of sound. Beethoven's innovative compositions, including nine symphonies and a mass, helped establish him as one of the greatest composers of all time and marked the beginning of the romantic period in music.