The Casio AP-270 Celviano digital piano delivers authentic grand piano sound and playability. Celviano instruments feature Casio's Tri-Sensor II 88-key scaled hammer action keybed with simulated ebony and ivory keys for a superbly natural acoustic piano playing experience. The sounds are incredibly realistic thanks to Casio's award-winning AiR Sound Source, which utilizes grand piano samples recorded at four dynamic levels to deliver piano sounds with long natural decays and remarkable expression. The AP-270 features 22 built-in sounds that you can split and layer as needed, including two gorgeous stereo grand pianos, which breathe with lively damper resonance that simulates the entire body of the piano, not just the strings. We find the sumptuous New York grand piano's broad dynamic range perfect for many genres. And with 192 notes of polyphony, your Celviano can handle even your most complex performances, as they're amplified in all their glory by the AP-270's onboard speaker system.