Wow! They sound exactly the same to me.
I don’t listen to much music, for that very reason. Your humming a tune before you know it, "hey that sounds pretty good". Of course it escapes the attention that the very same thing is playing on the TV in the background, while you’re writing that new original wonder.
Being so seriously commercial, I do find it hard to believe it was purely accidental. But when you copyright a song, isn’t that to prevent that very thing from happening? With all the music there has ever been, there HAS to be repeats of the same idea. If you sincerely take every legal requirement, how are you supposed to know what every other song on the planet sounds like? Huey Lewis, I want a new drug and the theme from Ghost Busters was a case I remember from, well a ”little” while ago.