... powerful sound and nice even tough. 1, HG277 Hailun grand piano model is now used by many music universities.2 ... , HG277 Hailun grand piano is designed by Frank George Emerson from U ... .S.A.3, HG277 is a concert grand. Great powerful sound and nice even tough.4, HG277 ... A Japan and other markets.5, HG277 Hailun grand piano is voiced in European way.6, HG277 Hailun ...