CONAN/Good the Bad and the Ugly music

Did anybody ever notice that both these songs open nearly the same way?

The Ecstasy of Gold- by Ennio Morricone

https://www.youtube.com/watch?v=wV0wPBYDQ6Y

Death of Rexor- by Basil Poledouris

https://www.youtube.com/watch?v=jNegSYKXbRQ

Just a tad maybe... but I'm not a music major, so its pure guesses for me.

Plus, both movies were filmed in almost the same place lol. The Mounds must be like 15 or 20 minutes by car to the Spahetti Westerns city in Almeria.