The YDP223 combines great sound and features in an attractive cabinet that will add a touch of elegance to any home. From the moment that you turn it on and start playing, you'll be glad you made the decision to buy Yamaha, the world leader in musical instrument manufacturing. The YDP223 features an 88 Key Graded Hammer Action. Graded Hammer Action emulates the action of a grand piano – heavier in the bass and lighter in the treble areas of the keyboard (on a grand piano, the hammers get thicker as you move from treble to bass). And nobody does this better than Yamaha, one of the most respected manufacturers of upright and grand pianos in the world today. The YDP223 comes with a selection of 14 voices and features a Stereo Sampled AWM (Advanced Wave Memory) piano sound that feels, reacts and sounds like an acoustic. When you play harder, the sound is louder and brighter. And when you play softly, the sound is quiet and warm. And of course, it never needs tuning!