On the topic of polyphony ... I noticed in the CVP-609 (Yamaha Clavinova piano), it shows polyphony as "128+128". I assume this means, in an approximate way, that inside a CVP-609 is an "arranger keyboard" similar to Tyros4, PLUS a digital piano (the Clavinova), each having 128 notes of polyphony, for a total of 256. Does this sound right?
From the CVP-609 specs:
http://i302.photobucket.com/albums/nn83/jimlaing/CVP-609-1.pngJim
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Genos / Tyros5 / HK Lucas Nano 600 / FTB Maxx 40a / EV ZX1A / Rock'n'Roller cart / Hauptwerk virtual pipe organ / misc other audio & music toys