I'd say it looks like Abba, "Knowing Me Knowing You" in the wrong key, slightly embellished for elevators, with Ross Valory improvising the bass line. In a world where many purveyors of three chord rock and roll decimated music, though, a snippet is too fragmentary, if somebody isn't familiar with the work. So maybe just spill it, unless it's something more frightening than Abba, in which case, weigh keeping it to yourself? For the safety of the author? And the planet?