Peter,
in the sequencer you are running there has to be an option to set the clock to internal (master) or to external (slave); then, of course you should set the same parameters the opposite way in your 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.