[Maceman]

This is stupid. The two songs have almost nothing in common in terms of melodic structure, and the so-called similarities of the lyrics are a major stretch. They also have nothing in common harmonically, though if they did, that wouldn't matter because one can't copyright a chord progression anyway.

I'm speaking as someone who was a cum laude graduate of Boston's Berklee Collee of Music (arguably the world's best music school) and a professional arranger/writer/performer for almost a decade.

Interesting musical trivia fact about the construction of the song "Yesterday": The rhythmic structure is extremely unusual for a pop song, because it is built on a seven-bar phrase, instead of the more usual eight. Count the bars yourself (4/4 time):

|| Yesterday | all my troubles seemed so | far away | Now it looks as thought they're | here to stay oh | I believe in | Yesterday ||

[gcruse]

At first, it was 'scrambled eggs.'  Then it was 'yesterday.'

If you're old enough to remember the song
'popsicles, icicles,' then you can see where
Ray Stevens got the inspiration for 'Guitarzan.'