In an instrument like the PX-560, the all-important piano sound must be as rewarding as the keys themselves. Casio's Multi-Dimensional AiR (Acoustic and Intelligent Resonator) Sound Source delivers some of the best piano sounds you've ever heard. Its Linear Morphing technology creates smooth transitions between the softer and louder sounds. Damper Resonance gives you the deep feeling of the piano's soundboard interacting with the strings. String Resonance models the harmonic relationships betwee