Automatic "DJ mode" in Spotify playlist

[A-A-Ron305]

I've noticed that sometimes when I listen to the "Electro Workout" Spotify playlist, tracks won't just play from start to finish. Instead, a 4:00 track will start in the middle (e.g. the 1:00 mark) in a way that connects to the previous track, and then end in the middle (e.g. the 3:00 mark) in a way that connects to the next track. It's like a DJ is running the playlist automatically.

I LOVE this feature when I'm working out, but can't figure out how to turn it on/off. Is there a setting somewhere that I'm not seeing?

Thanks!

[shaggyb]

Go to that playlist, copy songs to a playlist of your own ... only the original playlist will mix, not yours.

[A-A-Ron305]

Yep, makes sense. But the original playlist doesn't always mix. Some songs will play start to finsih, and some songs will mix, and there doesn't seem to be any setting that controls it. Is it just a feature that's only compatible with certain songs?