What makes you think it is just one song? In the 1980s it was a mix tape that took the good tracks from several albums. With computers it is a playlist. Or more often it is a play random tracks from my large collection until I hit stop.

I do listen to just one song once in a while when that is all I have time for, or when some song comes to mind that I want to hear. However mostly it is a playlist that I created.

There are a few albums that are related collection and work best listened together, but most are just a bunch of songs and you can listen in any order.