Check the listing for details. Casio Celviano AP-750 Digital Upright Piano - White. Color: White, Condition: New. Listed at 3199.99 USD. Nuanced, Expressive, Inspiring: the Casio Celviano Once 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 that’s nuanced and undeniably inspiring. The sounds are incredibly realistic thanks to Casio's award-winning AiR Sound Source, which utilizes grand piano samples recorded at four dynamic levels to deliver piano sounds with long natural decays and remarkable expression.