This is a transcription from the original for 2 violins and cello for 2 x Bb and bass clarinets with a keyboard accompaniment which may be played on various keyboard instruments, including harpsichord and chamber organ. The bass clarinet part is optional in this version. Except where shown otherwise the notes should not be slurred together. The mp3 file gives a useful indication of the various tempi for each of the 5 movements.