I just got the email from Yamaha today letting us know what's new for this Winter NAMM show.
A replacement for the current YPG625 called the YPG635 with 64 note polypony instead of the current 32. A replacement for the current PSRE403 which will be the PSRE413 and a non weighted version of the YPG525 called the YPG534 and a 76 note version. That is all for arranger models from Yamaha at this time. I suspect if they will come out with a replacement for the current Tyros2 it will be at the Summer NAMM show, but I have no knowledge except for past history from Yamaha.

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George Kaye
Kaye's Music Scene
Reseda, California
818-881-5566
www.kayesmusicscene.com