'THE GREYSON VARIATIONS,' by Nelson Clark. This P.R.P. radio drama is a study in what is real…and what you perceive is real. The play exposes the depths one researcher will go to embrace the human soul even if we're compelled to ask if the soul is real...or created. And what does 'created' mean, after all? And what, exactly, defines humanity? Is the answer black and white. Or perhaps a shade of grey somewhere in between, somewhere within ….The Greyson Variations.