What is this style of music called (see link)?

Alright, folks, gather 'round, it's time for a little musical education! I've been diving into the deep, melodic ocean of this music style, trying to pin a name on it. Now, I could've just told you, but where's the fun in that? So, let's play a game, shall we? Stay tuned, because in the next few lines, I'll drop the big reveal. Hint: it's gonna be music to your ears, quite literally!