Alesis CONCERT Digital Piano With Full-Sized Keys - 88 KeysThe Concert 88 Key Digital Piano with Full Sized Keys from Alesis is a full featured digital piano with 128 note polyphony, semi weighted keys, adjustable touch response, and a built in 20W speaker system. It features 10 built in voices: acoustic piano, bright piano, electric piano, harpsichord, drawbar organ, church organ, synth, strings, bass, and clavi. The keyboard can be used to customize the voices by combining any two sounds in layer mode or by