4 Sonatas (Wq. 83 - Wq. 86), Volume 1 (Flute and Piano)4 Sonatas, Vol. 1; Sonata in D major, Wq 83 and Sonata in E major, Wq 84 (Flute and Piano) By Carl Philipp Emanuel Bach (1714 1788), Published By Breitkopf and Hartel, Edited by Gerhard Braun, Includes flute part and piano score. Urtext Edition These Sonatas for flute and harpsichord obbligato (Wq 83 86) were written in Potsdam between 1745 and 1755, while C. P. E. Bach was in the service of King Frederick II of Prussia. The sonatas also exist in