The 'radio-tuning' sequence continues, but I also include a photographic image of the sky, tinted with the colours of the spectrum.
I wanted to open up the imagery a little now, to hint that the 'tuning' wasn't just to the radio band, but all our sensory experiences and knowledge of the world. The contact in question is both mundane and, on a larger level, germane to the phenomena that makes the universe itself perceptible to us.