Rock&Roll was similar to Blues in that there were very few chords and lots of rhythm, both in the melody and it’s phrasing. You could spend days finding out how many songs from the 50's and 60's share the same chord and melody format. These songs had different lyrics and told different teenage sagas, sung by different personalities. In a way, it is similar to folk music. “Surfin’ USA” is not the kind of song that gave Brian Wilson the “genius” tag. It was a song written by a kid who simply did what others around him were doing. Wilson’s later work is extraordinarily original. To focus on that singular aspect is like saying that “Entourage” is a movie about Turtle.