Providing some perspective on this song and the songwriting talents of Paul McCartney, Seth Swirsky
, who produced the Beatles documentary Beatles Stories
and spent years as a staff songwriter for Chappell Music, told Songfacts: "He could do so many things, and he could do things that are hard to quantify. Some people might say, 'Well, I like Hall and Oates as songwriters,' let's just say. But they do that 8th note thing where they're just banging on the piano, like 'Kiss On My List
,' so you could kind of copy their sound a little bit, or copy their style of writing. Very hard to copy McCartney, because you just don't come out with 'Penny Lane,' where it just changes keys. It's out of a different kind of brain."