Some claim that Paul was the best guitarist as well as bassist, I like his lead playing more than Harrison’s. Not bad on the drums either. He played all the instruments on his first solo album.
Lead guitar break on “Taxman” is played by Paul.
John Lennon was once asked if he thought Ringo (who was his muse and good friend) was the best drummer in the world. Lennon replied, “He’s not even the best drummer in the Beatles.” Paul was, indeed, a good drummer. In fact, Lennon got inspired and wrote ‘The Ballad of John and Yoko’ one day and decided to record it that night, even though George and Ringo were away. So John and Paul recorded it themselves, with Paul on bass and drums.