YAMAHA please...we really love the layout of this keyboard...the knop posititon, the drawbar, especially  the effect layout, the buetooth, easy access for sound with colour.. everything is so perfect, and so good for live performance. You've already have build montage that so good but to be honest It dont fit well for live performance, it to complicated, But if you consider build keyboard for live, CK 61/88 is so powerful for live situation, please build the premium one, premium sound, premium effect,...you build that, than it will become the best keyboard of all time like DX7😊😊...Thanks