Thanks, I've followed that for future listening! When I'm doing "light" work or studying I'm partial to short stints like the Pomodoro method. What the podcast author has done is very clever with the melding of playlist and podcast.
When doing "deep" work, I'm more partial to much longer stints without interruption though. I enjoy becoming engrossed in my work for 4-6 hour stints, only coming to when my partner or colleague throws something at me to bring me back to reality, which I find the playlist helps me achieve; especially if I set Spotify to meld songs together. There's a fine line between productive and meditative that music really seems to trigger in me.