In 1849 Schumann turned to a new genre: works for piano and accompanying instrument. He showered the different wind instruments systematically with Fantasies, Romances, etc. - and always also provided an alternative part for strings. Thus Schumann also wrote an alternative part for his Adagio and Allegro op. 70 for Horn and Piano, namely for the cello. Clara played the new work together with the horn player E. Julius Schlitterlau, writing afterwards in her diary: "The piece is splendid, fresh an...