This incredible piece ranks among the most famous works by J. S. Bach. What is featured here is not a transcription, but rather the original cello part which can be played using the left-hand alone. It turns out to be an excellent exercise to improve your left-hand dexterity, accuracy, and agility. It is also an invaluable way to help the left-hand reach the level of musicality and detail we usually leave to the right-hand.