Rondo Espressivo from a sonata in B minor by Carl Philipp Emanuel Bach Transcribed for AdLib by Larry Soprano During J.S. Bach's life C.P.E. was the most successful of his sons. During a visit to this son (while he was the chief keyboard player for the King of Prussia) J.S. Bach first got to know the piano... which was something new in 1748. This piece is most likely for the piano rather than the harpsichord or clavechord because it has a slightly larger range than was common for these two older instruments, and it is sprinkeled with dynamic markings (pp to f) which are possible on the clavechord, but there are a couple of notes in the soprano that don't exist on the that keyboard, and even the early pianos added an octave above and below the usual range of these two earlier keyboards. The rondo is in B minor, and is a slow (andante) almost sad and lonely piece in two voices through out except for two semitone disonences that push the soprano along. In rondo format the main (first) theme appears several times seperated by contrasting material sometimes derived from the main theme.