Casio WK-6600 is way more powerful than you would expect - still am learning the duet function on the arrpegiator and autoharmonizer. Any idea how to get that to work? : r/casio
WK-6600 | CASIO INDIA
Digital Piano Casio WK 6600 Full Review. Is it a good keyboard?
Amazon.com: Casio WK-6600 76-Key Workstation Keyboard with Power Supply Black medium : Musical Instruments
Casio WK-6600 Portable Workstation Keyboard with 76 Piano-Style Touch-Sensitive Keys Premium Pack Black CAS WK6600PPK - Best Buy
Casio WK 6600 Electronic Keyboard Piano brand New, Hobbies & Toys, Music & Media, Musical Instruments on Carousell