Which composer did not play piano?

Hector Berlioz (11 December 1803 – 8 March 1869) was a French composer, most well known for his pieces Symphonie Fantastique, Harold in Italy, The Damnation of Faust, and his opera Les Troyens.

Unlike many other famous composers of the time, Berlioz was not a child prodigy. He began studying music at age 12, writing small compositions and arrangements. As a result of his father's discouragement, he never learned to play the piano, a peculiarity he later described as both helpful and as a detriment. He did, however, become proficient at guitar, flageolet and flute. He learned harmony from textbooks alone, without formal training.

At the urging of his parents, he originally attended medical school in Paris, but abandoned it in favor of a musical career after three years.

On top of his musical compositions, he was also well known as a conductor, having influenced many of his colleagues and disciples with his techniques; using grand gestures to draw what he desired from the orchestra. Berlioz was a prolific writer as well, supporting himself for many years as a music critic in Paris.