I suspect you get more EMF from your TV set than anything else. Arranger keyboard displays produce a tiny bit if EMF, but it is hardly measurable. Probably about the same amount as a luminous wrist watch.

Jim, what is the neurological problem you are experiencing?

Gary cool
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PSR-S950, TC Helicon Harmony-M, Digitech VR, Samson Q7, Sennheiser E855, Custom Console, and lots of other silly stuff!

K+E=W (Knowledge Plus Experience = Wisdom.)