In January of 1969 The Beatles were intent on making an album and a movie, which was released as 'Let It Be' in 1970, then became the documentary 'Get Back' in 2021. For You Blue was one of two songs from George Harrison that made the final pressing of Let It Be. The band really considered the song inconsequential but had fun playing it as evidenced by John's enthusiastic lap steel playing.
The tune is a simple 12-bar-blues with a creative intro that George played on the acoustic guitar with a capo at the fifth fret. The lesson goes over the progression with great detail on the intro, as well as a segment showing how to do John's part with a bottleneck in Open D Tuning. There is also a short segment on accompanying the verse without a capo in the key of D.