6, by Samuel Barber is a sonata for cello and piano.
[1] The sonata was composed between June and December 1932 during a trip to Europe as Barber was finishing his studies at the Curtis Institute of Music.
The score is dedicated to Barber's composition teacher, Rosario Scalero, and was officially premiered on 5 March 1933 with the composer at the piano and his friend and colleague Orlando Cole as cellist, at a concert of the League of Composers in New York City.
[3][4] The Cello Sonata, Opus 6, is a chamber piece.
A romantic piece in a clear C minor, it is a profound and passionate cello sonata reminiscent of the examples of Brahms and Hans Pfitzner.