Simon: I like your explanation and think it is similar to my own, but I question whether you are able to select and play a megavoice from the Tyros keyboard. Page 80 of the Tyros owners manual specifically says that you cannot do this from the Tyros, nor are the megavoices meant to be used at all by the user due to the near-impossibility of using them in live performance. From what I've read by George Kaye, I gathered that the individual "elements" of a megavoice are available as individual voices that are selectable from the Tyros, but not the composite megavoices themselves. Can you tell me where you read that the megavoices are playable from the Tyros keyboard? Is the Tyros manual wrong or have I misread something?