[mfdaniels]

Honestly, I expect recency to be a large factor in Spotify plays. That is, we expect that the average hit from the 70s to have fewer plays than a hit from the 80s, and so on.

Regardless of the age of the listener, I expect newly released songs to have higher playcounts (in fact, I plotted this curve, but it was too high-brow for the Internet and the audience for which I was writing).

That said, if I managed to cut the data by age-bucket, I do think that the results would shift toward the music with which you grew up.