I have long pursued the following piece as a solo but never found a solution that I could play. Recently, visitors' requests for more duets and the responses that I have received for the ones already available here prompted me to look at it again. Even as a duet it is a formidable challenge to play at a brisk tempo, but it is Bach at his best - a glorious and exuberant explosion. Listen to the MIDI file of the full score before deciding whether to download the score as it is quite long - five pages for each part.