The "Get Back/Let It Be" project January 28 1969

The day started with The Beatles having a go at "I've Got A Feeling" until Paul has to leave for a meeting (probably to discuss the upcoming release of the Mary Hopkin LP "Postcard") while John, George , Ringo and Billy Preston continue on with the latter song for a while.
The Lennon tune "Dig A Pony" or "I Dig A Pony" (depending in which country you bought your "Let It Be" album) is recorded but none of the takes are released. The next song being recorded on this day was the ending or the reprise for "Get Back". The reprise was added on to the previous day's take and released on the commercial single for Apple as well as used on the first two Glyn Johns LP reels.
The Beatles ( and Billy Preston) also recorded the B-side "Don't Let Me Down" with addition overdubs completed during a February recording session which unfortunately remains undocumented. Other songs rehearsed and recorded on this day at Apple Studios include more of "I've Got A Feeling", "One After 909" and "Teddy Boy". One of the takes of "Teddy Boy" was used for the Apple 3LP/2CD "Anthology 3" with an edit of segments from this day's session paired with segments from the January 24 1969 session.
The "Get Back" take with coda was mixed for mono on March 26 1969 at Abbey Road and then again at Olympic Studios on April 07 1969. The stereo mix for "Get Back" (with coda) and "Don't Let Me Down" (with overdubs) was completed three days earlier on April 04 1969....et viola....the "new" Beatles' single was ready. As nature intended.