One of the greatest cellists of all time playing my second favorite solo piece ever written. The Bach Cello Suites, as anyone who has ever attempted to play them on any instrument can tell you, are deceivingly difficult. Whenever you are playing an unaccompanied piece you must be everything: the melody, the time, the harmony, everything. Few in history have done this more convincingly than Rostropovich.
If I could play any instrument other than the tuba it would be the cello and that is because of people like this.