Typed letter, signed "Elliott Carter." 1 page, July 11th, 1958. The composer writes to a Mr. Giddy in relation to his sonata for cello and piano. In part: "The work requires a good pianist and needs quite a lot of rehearsal as the ensemble is intricate… If you decide to do the work, please be very sure that the cello is almost always very clearly audible above the piano - even if this means having the piano completely shut and the performer playing very much more softly than is marked. I find that the work depends very much on the proper balance and can be completely spoiled if the piano blots out too much cello." Signed in red ink. Two punch-holes away from the text, and letter folds, otherwise in fine condition.