Ketron SD9 76 Key Professional Arranger KeyboardSOUNDS The SD9 features 2 brand new superb stereo Grand Piano sounds, Classical and Modern, and a new and authentic vintage Electric Piano. With their uncompromised multilayer sampling, long natural decay and very high sound quality, these pianos surpass anything ever offered on an entertaining keyboard. Certainly a main, basic purpose for any professional performance and composition. The SD9 contains also a massive, renewed sound library with new