I beleieve the difference sis in the EDITING...Tyros has already edited those elements. The Motif allows the user ot edit each and every aspect of all eight elements to create a single voice. It rightly appears Yamaha believes the Tyros is plug and play while the Motif is a creator's toy from raw wave form to finished voice. Multis are a good example of that. You can create them on a Motif to a great extent using elements velocity switching, scaling and a crapload of effects per element.

The took edited XF synth sounds and put them in they Tyros with minimal editing capabilities. The Drums are much better however. They don;t sound like Live drums and are still processed to blend in a smooth mix. The CD quality is the Tyros signature. For those of us who like that it is a winner. For those who want more raw visceral tracks it is milk toast. If you have a Motif you have all the visceral you need to create tracks that can be played back on the Tyros live minus parts.\\


What's it worth?
-15 more SA2 voices
-new VH2 engine with dedicated DSP effects a new preamp and signal processing under the hood, add up to three harmony vocalists in addition to your own voice and with new pitch recognition and stability controls
new Synth Vocoder.

Voices 993/749
S. Articulation 2 15 +15 for styles) /11
S.Articulation! 164/
MegaVoice 43/23
Live! 101/70
Cool! 71/71
Sweet! 30/30
Organ Flutes! 30 Presets
Drums 44 (including SFX kits) vs 12 T3
Internal Flash 6MB
Styles 500/300

Multi Pads 164 x4/123 x4
So there are quite a bit of upgrading in the oices and styles.

Is it worth $1500 more?

The market will determine that...So far they have bought more than the previous models. wITH A TWO YEAR RELEASE ESNG THE FINANCIAL GAP TEY SHOULD CONTINUE TO SELL MORE...
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Yamaha Tyros 4
Yamaha Motif XS8
Roland RD700
Casio PX-330
Martin DC Aura
Breedlove ATlas Solo
Bose MOD II PA