Casio PX-770BK Privia Digital Home Piano (Black)The world renowned Privia family of digital pianos grows with the PX 770, designed to provide a true grand piano experience in a slim, modern design. With authentic piano sound, natural feel, and impressive features, the PX 770 is a brilliant instrument for inspiring brilliant performances. Concert Play The PX 770 comes with a built in library of ten classical pieces, giving you the ability to play along with recordings of a live symphony orchestra.