The violinist played Bach's pieces with such mastery that he was hailed as a virtuoso.

virtuoso 来自意大利语，由 virtu（才能、技艺）和 -oso（表示"充满...的"）组成，指"技艺精湛的表演者"，特指音乐演奏方面的大师级人物。在艺术领域常用来形容技艺超群的演奏家或表演者。