Bk-5 has new Piano 2 option for fingering this option allowes you to play complex cords and the aranger will follow like G/B D/F# ect this option allows you to play like a piano player would play not a arranger but the keys are small and this make it not a option for me.
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Genos, PSR S970, Fender Tele Amercian Deluxe Cherry sunburst , Cubase Pro 8 ,Yamaha A3M Acoustric ,Taylor 814, Ibenez Artcore Custom Tascam DP 32 Yamaha DXR 10, QSC K-12, K 12 Sub K 8 Sinn 945
2 Fender Expo line units .