Outsider music: classics of American classical music (54) - Roger Sessions - Piano Sonata No. 2 (1946) Roger Sessions: Sonata per pianoforte No.2 (1946) Great composer and great teacher, one of the most important figures in 20th-century American music, after neoclassical beginnings he shifted to twelve-tone writing, creating an absolutely personal language (just like Carter) and producing a large number of pieces: from piano sonatas (like this one) to symphonies and concertos. Pulitzer Prize winner in 1982 (at 86 years old!) with his Concerto for Orchestra.