Depending on who you are, or what side of the fence you are, or whatever else that makes us different, the following is either a mash up, an aural montage, a medley, random sounds not found on Spotify® nor Itunes®, a collective of songs in the same key, and so many other terms.
Since it is currently 2019, the more appropriate classification would be what? Yeah! By the way, yeah should be pronounced as if it has three syllables.