61 keys with touch response

Preset Tones/User Tones 600 / 224 Total of 824 Tones and 176 rhythms

Stereo Sampled Piano Tones

Digital Effects/Reverbs 242

Song Memory (tracks x songs) 6 x 5

The CTK-900 makes it possible to produce very special sound creations - with 536 tones, 160 rhythms and 232 digital effects. Thanks to the integrated song memory you will never lose a note. And very practical too: The General MIDI interface means you can transfer music data easily. Other features include Casio's excellent, expressive ZPI sound source; IDES, Casio's Internet Data Expansion System and 32MB Flash ROM; a massive selection of 232 digital effects; Drawbar Organ sounds, 5-song onboard Memory; MIDI In and Out; and battery (6xD cell) or AC operation.