John Ross tipped me on how to get around this, but curious why it happens. Occasionally a " note", and not the same one, will not activate lights unless I move Sat. to another location on piano. I have my own theory as to why it happens, but wonder if someone has the definitive answer. I'm not sure how to "splain" my theory, but it's based on why you don't hear tweeter signals from a high fidelity speaker if you stand to the side, where bass signals are heard quite readily in most any place you stand. High , or tweeter sounds are very directional as opposed to low frequency signals. What say ya'll. Carl / Winnipeg.
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