AP-710 Developed in collaboration with C. Bechstein Three famous grand piano sounds in one instrument Keyboard with synthetic ebony and ivory texture 26 different tones availableMore AP-650 Multi-dimensional Morphing AiR Sound Source Scaled and weighted hammer-action keys with simulated ebony and ivory textures 250 tones 180 rhythmsMore AP-470 Multi-dimensional Morphing AiR Sound Source Variable piano lid 22 sounds Split, layer and duet functionsMore AP-270 Two new concert grand piano tones, plus 20 other sounds Multi-dimensional Morphing AiR Sound Source Scaled and weighted hammer-action keys with simulated ebony and ivory textures Concert PlayMore