Well, I see no direct outputs in the TASCAM units, but I guess you could use an aux send for FSK syncing. All you have to do is to record a special sync audio signal generated by a special machine in one of the tracks and then output this signal through a FSK-to-MIDI converter like the one from Philip Rees in order to get either MIDI Time Code or SPP/Timing clock MIDI sync for your keyboard. Ah, the "special machine" can be this unit as well.