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Trying to find a book I read in the late 70's or very early 80's.
As I remember, the plot centered around a rock star who transferred his consciousness to a computer, and whom "made contact" with a Russian telepath. The telepath was, iirc, actually a "living brain" - or slices of - held in some form of life-sustaining container. One of them may have been based on a satellite, and may have had telekinetic powers.