Well, I believe that you are wrong, then in that case. Mega Voices are NOT just simply velocity triggers, as I have tried my best to explain. Some of them are, some of them are NOT.

You are also forgetting about the issue of non-pitched sounds not transposing, while pitched ones do. If the MS transposes the entire Track, then those non-pitched sounds will change (into Lord knows what!) as the chords move. On a Yamaha, they don't.

If Mega Voices and RX were the exact same thing, Yamaha wouldn't have needed to invent a whole different term for them...

BTW, once again, my knowledge about this ISN'T mere conjecture. I made a determined effort to see if I could use a Motif Rack to play Translated Yamaha styles from my Roland, it having some Mega Voices on board. This is when I found out about the issue of Tracks having transposed AND non-transposed notes all on the same Track. I simply wish that you would take the time to actually TRY this stuff out before you go ahead and tell us about it.

Like I have, for instance...