This email just arrived from Yamaha

76 AND 61-key models
Incredible new Voice content including but not limited to new SA2 Voices, new pianos, EPs and keyboards and a mind-blowing new ensemble Voice feature that will redefine what you think of as "real"
Exciting new Style content with all-new Audio Styles
Trigger chords from the right or left-hand, play left-hand bass or play piano-style while the Style plays the bass
New graphics for the new ORGAN WORLD Voices and effect editing give Tyros the feel of a professional recording studio
New audio features like Audio Link Multi Pad, Time Stretch, Pitch Change and Vocal Cancel