Scott, you're correct and I agree with you except that most arranger players don't use jazz voicings (and the manufacturers know this). In fact they sound downright weird with most of the pop styles. Most of the styles seem to work best with simple chords (an exception would be "BEBOP" which seems to work better with jazz voicings on both keyboards). And although it would be nice, most arranger players AND their audiences are not really into Bill Evans (genius though he was). Hey, we both think 'round midnight, Dear ol' Stockholm, A Love Supreme, Ruby, my dear, etc. are great tunes but it's unlikely you're going to hear them at the local bar, nursing home, church social, coffee house, etc.; at least, not two nights in a row. But hey, before the real gig starts, warming up with a 300bpm rendition of Cherokee might impress a cute waitress .

chas