The Youtube demos of new arrangers are great to have since some of us reside in places where such stores are scant and live demos are difficult to experience. However, I agree with others that the available demos should include various levels of player skills. For one, I wish the manufactureres would offer more examples of pro-type players showing what these boards can really do. So much of what I hear is groove type styles where one or two chords are the norm. How about some standard tunes with slick jazz or big band stylings, such as Frank Mantooth arrangments or Dick Hyman? I'd like to hear chromatic bass lines, 4 chords per measure, and other idicators of a truly professional band---at least as much as a single arranger can provide. These are not complaints, just wishes. I love the S900. Can't wait for the next upgrade.