There needs to be a granular way to train the algo in Radio - the thumbs up / thumbs down pop-up before a track plays is one thing, but stuff like “does it take into account that I just skipped that New Kids on The Block track ?” isn’t obvious to the user. Also, I might decide that Hangin’ Tough isn’t what I want to hear right now, or within a given context (say, because it has nothing to do with A Very Marky Mark Christmas), but that I don’t want to, like, not ever hear it again, and how to make that happen needs to be (more) explicit.
Some kind of visual feedback of how “trained” the algo is might be nice as well, but that’s more secondary, as well as a few elementary options (say “prefer rarely played albums in my library”, for example).