Coming from a college background in jazz and playing in a jazz combo professionally, I think that the PSR2000 provides the tools I need for creating realistic sounding combo jazz on an arranger keyboard, especially because it supports the 'rootless chord' recognition which is such a trademark of the sound of modern/swing jazz. The 2000's jazz styles are admittedly weak and limited in selection, but I was able to easily import (via EMC style converter) the GREAT jazz swing styles from my KN5000 into the PSR2000 and now my PSR2000 really SWINGS! On the subject of importing styles: I've had EXCELLENT SUCCESS at importing styles (via EMC Style Converter) from Solton, Yamaha, GEM into my Technics KN5000, so I think that though a keyboard's built in styles is certainly important, most important is the the quality its sounds and features.

As AJ outlined so well, you can employ a number of arranger performance techniques which will add spark & spontaneity, and a sense of live interaction - abeit with yourself: a form of arranger masturbation?!

On the PSR2000 you can create patterns up to 32 bars long. : D: If you need more than that, then you're probably better off just sequencing an entire song and playing along with a midi file. You can instantly call up different custom pattern variations via Registsration Memory buttons (1-8) at a moments notice, switching from one variation to another as needed. Each of these can have unique instrument/EQ setups. This combined with playing the multipads LIVE, and triggering fills and breaks at just the right places, should give you all the things you really need to create an exciting performance with the feeling of a LIVE band. If you want more than this, you'd better hire real LIVE pro musicians.

The tools are available to us NOW. It's now up to us to work to MASTER the techniques. . . and arranger keyboard performance is truly an ART!