Yamaha DGX620AD 88 Key Electronic Keyboard with Graded Hammer Action 88 full Size weighted Graded Hammer Action piano keys 500 instrument voices including 127 standard, 361 Xglite, 5 "Sweet" , 3"Cool", and 12 Drum/ SFX kit voices Amazing Live! Stereo Grand Piano Large Full dot-matrix LCD for easy viewing of music score and lyrics Performance Assistant allows you to play along with and built in song regardless of your level of play