While listening to Don't Let me Down and then later to Get Back and I've got a feeling - what if Billy Preston hadn't shown up?
OMG - what would these three songs have sounded like without him on keys?
During Get Back, before Billy, they are talking about needing someone on piano for one of these, I think it was Don't Let Me Down, but realizing they needed Paul on bass, but maybe George could do the bass, but then no guitar other than rhythm by John...they discuss getting someone else (I forget who) for keyboard (Hopkins?)
All three of these songs have tremendous keyboard parts that Billy Preston added (LIVE!) on the rooftop. Playing live like that and not relying on overdubs created the need.
Beyond that, say they went to overdubbing (if Billy never showed) - my guess is the keyboard parts would have sounded different, right ? Paul would have had a different take on what to put in there.
Thoughts ?