Hi Bill, even though I already opted to go with the Tyros4, I value 'your opinion', especially since you opted to go with the Ketron Audya, right? Man, I'm convinced that all the top arrangers these days are excellent, and it simply comes down to finding the one with features that 'best match' your music genre specialty or playing style/requirement. That said, I'd love to hear more about your experiences with your new Ketron Audya. btw, congratulations. - Scott