Claudio Arrau Le n (Spanish: [‘klaw jo a’raw]; February 7, 1903 – June 9, 1991) was a Chilean pianist known for his interpretations of a vast repertoire spanning the baroque to 20th-century composers, especially Bach, Beethoven, Schubert, Chopin, Schumann, Liszt and Brahms. He is widely considered one of the greatest pianists of the twentieth century.