I've heard 2:00 is some kinda sweet spot for the Spotify algorithm and payouts? You get paid per play so you don't want to it too long, but if your track is much shorter than two minutes you get penalized or something. I know they've had to remove ambient tracks that were cut into 40 second clips as part of this.

So you might see a lot of anchoring just like YouTube videos kept stretching to almost exactly ten minutes?