Hi Sean,
Thanks for the "mp3-demo" , I realy enjoyed it. My freind you have talent+ and who is the female vocalist? A voice of clarity and beauty. If you did all that on a psr500 (and I`m sure you did) you make old "gear" sound like new stuff !!! O-BTW the drum beats are cool too. I checked on "Yamaha`s" web-site and found a "wind controller" that works through midi , link> http://www.yamaha.com/cgi-win/webcgi.exe/DsplyModel/?gMCD00005WX5
From what I heard on your demo , the 9000Pro , would IMO suit you very... nicely.
Do you plan on releasing a "CD" with your talent for "arranging" and the vocals (the lady) you could make a "mint" !!! To be completly honest it sounds like "Karen and Richard" are back, (the Carpenters, dare I show may age ,hahahaha)
Anyway it was a pleasure and thanks again, Take care and best of luck
jedi