P. S. I Love You was the B-side to The Beatles first single, P. S. I Love You, released in the UK in early October, 1962. It already shows Lennon and McCartney’s “outside the box” approach to chord progression and harmony, using some chords that most songwriters would not in the key of D.
The two songs from this single later appeared on the album Please Please Me, something George Martin stopped doing shortly afterward, leading to the CD release of Past Masters Volumes I & II, which contained most of the singles.
This lesson just covers the chord progressions to the three parts. The strumming is very basic but good command of barre chords is necessary to play through P. S. I Love You.