The Yamaha AN1x Synthesizer mailing list

Hi, I am using the AN1x to control an MS2k rack.  My problem is that 
i am recording samples of the MS2k into my Yamaha RS7k and I need to 
sync it to the RS7k because the tempo is off slightly on the MS2k.  
How can I sync the MS2k to the RS7k but still use the AN1x as a 
keyboard controller for the MS2k.  Do i have to buy some Midi box 
that will allow me to hook both the AN1x and the RS7k into the Ms2k 
Midi in?  This is a simple question, i know, but this midi stuff is 
still new to me.