There might have been a copyright issue. However, the only legal cases involving

There have been a few lawsuits over using the same chord progression

Have failed. The most famous of these would be ed sherans. Its other stuff, with the chord progression. Like the eye of the tiger. You could steal those chords but you couldn’t steal the “duh…duh duh duh” bit with the chords, if that makes sense.

Oh for sure, with the melody too, it would be well over the line. I just didn’t want any aspiring song writters to get spooked. So, I thought to clarify was all.