. . "D-274 (or D) is the model name of a concert grand piano, the flagship of the Steinway & Sons line, first built in 1884. It is generally described as the first choice of most concert pianists.At 274 cm (8\u203211\u00BE\u2033) long, 156 cm (61\u00BC\u2033) wide and 480 kg (990 pounds), the D-274 is too large for most domestic situations. In concert hall settings, on the other hand, the D-274 is a major presence."@en .