Tony,
I remember you praising a board played by DanO; maybe he was playing a Ketron SD1 so, since Ketron has some very natural sounding styles, instead of buying a new keyboard you could just buy a Midjay and hook it to your present keyboard.
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Korg Kronos 61 and PA3X-Pro76, Roland G-70, BK7-m and Integra 7, Casio PX-5S, Fender Stratocaster with Fralin pickups, Fender Stratocaster with Kinman pickups, vintage Gibson SG standard.