The Symphony Concert digital grand piano from Williams delivers an unparalleled level of realism and musical expression. Featuring Williams' patented Whole Note Technology, the Symphony Concert uses authentic, unlooped samples of a concert grand piano for natural-sounding sustain and resonance. The 88-key hammer action keyboard has graded, weighted keys to emulate the touch of an acoustic piano. Authentic Grand Piano Sound That Evolves as You Play Whole Note Technology provides a dynamic, evolving piano sound with samples that ring out and fade naturally based on how long keys are held. Chords bloom and change character as notes decay, resulting in a rich, expressive tone that inspires creativity. With 172 instrument sounds in total including brass, strings, synth and more, you have a full orchestra at your fingertips. Responsive Keyboard With Weighted Hammer Action The 88-note keyboard features graded hammer action weights and a realistic key surface for a piano-like feel. The hammer action recreates the resistance felt when pressing acoustic piano keys, with heavier weights in the lower register and lighter weights up high. This familiar, responsive keyboard lets you play with dynamics and nuance. Built-in Effects and Powerful Sound System Three digital effects processors provide reverb, chorus and rotary effects to enhance the 172 instrument sounds. Add depth and richness to your performance with the turn of a knob. The Symphony Concert also features a robust 100W speaker system with eight speakers that fill your space with crisp, well-defined sound. Educational Features and Styles for Learning and Creativity Multi-colored LEDs under each key, onboard drum pads and 250 accompaniment styles engage students and spur creativity. The LEDs change color to highlight proper finger positioning and the pads trigger drum sounds and rhythmic patterns. With a variety of musical styles like pop, jazz and classical, you can play along to built-in backing tracks.