Casio AP-750GB Celviano Digital Upright Piano (Grey Beige) - 88 KeysOnce again, Casio has bottled an authentic acoustic piano playing experience with its Celviano AP 750 digital upright piano. The meticulously sampled Berlin, Hamburg, and Vienna grand pianos find superb sound reproduction in the nuanced Smart Hybrid Hammer Action keybed for a digital piano experience thats nuanced and undeniably inspiring. The sounds are incredibly realistic thanks to Casio's award winning AiR Sound Source, which utilizes grand piano