SONATA per il Flauto traverso solo senza Basso, da C.F.E. Bach appeared in 1763 in the fourth quarter publication of Musikalisches Mancherley, a musical quarterly printed in Berlin. In transcribi ng the work for trombone, Sauer has changed the original key of A minor to C minor and has revised the order of the movements to a more typical fast-slow-fast pattern.