In 1976 George harrison was found guilty of copyright infringement for "My Sweet Lord".
Having listened to this song and Ronald Mack's "He's so Fine" I did find them very similar in Melody and rhythm , the Harmony/Chordal structure quite alike But the tempo (Sweet Lord Slow- So Fine- Fast) quite differentand the lyrics different.
My class colleague Daniel tells me the instruments were different - as a non music crtic I had no idea about this.
I felt that if George Harrison did copy, he did it unconsciously (as he claimed) and that we all pick up ideas from things that we see and hear throughout life - which makes proving/claiming copyright fairly hard I would think.
So I would probably agree with the Court decision ( with some reservations - as above.)
It was a very enjoyable excercise !!!