The world-renowned Privia family of digital pianos grows with the Casio PX-770, designed to provide a true grand piano experience in a slim, modern design. AiR Sound SourceThe PX-770's award-winning AiR Sound Source includes a beautiful new stereo grand piano that comes alive with realistic damper resonance, simulating the entire body of the instrument, not just the strings. In addition to the new piano, the PX-770 features a variety of 19 instrument Tones, with the ability to layer and split th