In general, the astonishing art of Bach consists in this everywhere equally easy application of the above-mentioned artistic means. Whether the form which he chose was of the easiest or most difficult kind, his treatment of it was always equally easy, equally happy. We never find a trace to indicate that anything had been difficult for him. He always attained the end at which he aimed. All is complete, perfect in itself; no note can be wished by a connoisseur to be otherwise than it is set.