This week, we continue our look at "Get Back" the film, but just begin the journey with "Get Back" the song.     While waiting for John, Paul strums the Hofner and comes up with a little bit of magic.     Three days (mosty) without arguments, although there is still some lingering thoughts of a trial separation between the rehearsals.     Special guest, Alan Doss - drummer of Galactic Cowboys and bass player for the Rikki's.