Yamaha YDP 163R Arius Series Console Digital Piano with Bench, Dark Rosewood The Pure CF Sound Engine faithfully reproduces the tone of a meticulously sampled, acclaimed Yamaha 9' CFIIIS concert grand piano, allowing for incredibly dynamic and expressive playing. Graded Hammer 3 (GH3) weighted action provides increasingly heavier touch from the high keys to the low keys, with grand piano-style response and an outstanding dynamic range. 50 classic piano songs are provided in the built-in song memory as well as in a music book, "50 Greats for the Piano." The Controller App for iOS devices adds a rich graphical user interface, allowing for quick and easy navigation and configuration. The 2-track song recorder allows players to practice one hand at a time, or record their next hit single!