Quoting Audrey
I went to a 'Y' demonstration recently and was quite impressed with the 900 so much so, I'm thinking of getting one to link up with the KN7 via midi, would this possible or would the two keyboards be incompatible?

Audrey, It is possible BUT, here’s that word again, I have found that the quality or type of sound coming from the two keyboards or sound module was not compatible. When I added the second sound I felt it was coming from another place. You also have to deal with midi settings, although it came be done you are open to a third party midi file which may change your settings. There are way to protect the data but you have entered another stage of learning, it now becomes less user friendly.

But, ha ha I just love using that word, it puts me on the other side – This is what I would do:
1-First – Do not do as I did – I sold my Kn7000 and bought a S900. That is equivalent to one real good move and one terrible one, ya might relate that to tunnel vision. You can also relate that to this aging mind, There is a Jam coming in Florida this March, I just might be able to steel Glen’s Kn7000.

2-Have a double rack stand and use each one independently. You will have the best of both worlds. Both keyboards excel in different areas, work in those areas. One keyboard waiting while playing the other, great. Big Band song to a contemporary song, wow that sounds so good.

John C.