Thanks guys for clarifying this question for me. I recorded this song just for fun, and then I decided to sell it in a library.
As I am extremely against copyright infringement or misuse of other artists work, the last couple of days I have been thinking about how this song could cause problems, even containing minimal elements of the song in which it was based.
The problem is that the song recalls the famous song and how MichaelL said, any element may be an infringement. And we still have the variable of how the laws are interpreted in each country.
So I think I’ll remove this song from the library.