Wiki summary: Na Golici (German: Trompeten-Echo) is a Slovenian polka instrumental composed by Slavko Avsenik and arranged by his brother Vilko Avsenik. The song was written in 1954 and first recorded in January 1955 in the studio of Radio Kärnten. It is considered the most played instrumental tune in the world.
Oh I had to put a warning with it when I requested it: it gets stuck in your head after listening to it hahaha. But amazing right? And yes I though they would break into "it's a small world" several times as well hahahaha. But if this doesn't make you happy then I don't know what will! Loved your reaction to it! Similar to mine when I first saw it.