I haven't noticed that Spotify would do anything like that. Instead they're pushing their podcasts and curated playlists. To be honest, I've thought that they're more like banner ads on websites rather an attempt at custom recommendation.

They can't possibly have sufficient context.

I recently got super into the band Squid. But I hated them the first time I heard them. It was because I was depressed and looking for more music like Black Midi-- Black Country New Road came up and was perfect. Squid came up and made me want to punch my speakers.

If they have enough data to predict my mood to that extent then I would like to hire them as my therapist.

Same! Started with Squid and Spotify took me to Black Midi, Yard Act, Dry Cleaning, all of whom I'd skipped in the past because I just didn't get it, now I'm obsessed. Some music just defies understanding on a first lesson.

it's not perfect, but ytm does what gp says. "You often listen to X in the morning" can be helpful even if it doesn't know about personal events in your life