The main thing with using the Ventilator on the Tyros is, does it have separate outs for different Parts..?
One of the things that still bugs me about my G70 is, although it DOES have separate outs for the Parts, ONLY the VK organ section is not allowed to use them! So, I can't run it through my Motion Sound Leslie, or a Ventilator, or anything unless I'm not using anything else at the same time (or they ALL get Leslie'd).
Sometimes Roland do the dumbest things... (but who doesn't?!)
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An arranger is just a tool. What matters is what you build with it..!