Scope and Contents From the Collection: Donated in 1994, the Leon Robbin Collection of Music Manuscripts and Letters of Composers consists of over 800 autographed manuscripts and letters by composers, musicians, and conductors. Collection highlights include autograph manuscripts by many of the most important Romantic era composers, including Ludwig van Beethoven’s sketches for his Piano Sonata No. 23 in F minor "Appassionata," a full set of handwritten parts for Robert Schumann’s String Quartet in A minor op. 41 no. 1 (Heavily...