Though each member of The Beatles experienced enormous success as a solo artist, it’s notable that at various times in their later lives, each member of the Fab Four separately sought solace, protection and comfort in a new group or, in John Lennon’s case, musical partner, during their lives. Paul McCartney grew Wings (with whom he made his best record, Band on the Run), whereas Lennon, of course, replaced his old songwriting partner with the ot…