After a hiatus due to George's temporary walkout, the group reconvened on January 22nd at their new studio in the basement of Apple headquarters on Savile Row, where George recruited old friend Billy Preston to join in the proceedings. No further proof of Preston's consummate skill is needed than to listen to the take of Don't Let Me Down that Glyn Johns selected for the unreleased Get Back LP. This take is from Billy's first day sitting in with the Beatles and his part is already mostly in place. The only exception is his brief solo after John's call of, "Hit it, Bill," that allows the keyboard player to ad lib his way through to the end of the number.
The take that became the B-side of the single Get Back was recorded on January 28th. On every other version of the song that I have ever heard, George joins in the chorus, but he either did not sing on this occasion or his voice was somehow lost in the mix.
Phil Spector's decision to omit the song from the 1970 album Let It Be was remedied in 2003 on Let It Be - Naked, which presents an edit of the two rooftop performances of the number from January 30th, 1969. The tempo here is a little quicker than on the familiar B-side and, though John continues his usual practice of changing lyrics as he goes, the playing by those around him is rock solid. The film Let It Be includes the first of these two performances, with a group of men on the adjoining rooftop (and one fellow in a blue sweater in particular) making constant comments on the proceedings.