Yeah, this does make sense.
The telepathic connection between twin flames operates through the heart chakra, which has a much stronger electromagnetic field than the brain. Music works through that same channel, so it makes sense that it bypasses all your mental walls.
One of the most common signs of separation ending is how both of you make space for each other inwardly. That means you start feeling their interests and hobbies so being flooded by his artists and music on your playlists isn’t just chance.
Music carries emotion directly. We talk about Spirit use syncs and symbols because it doesn’t communicate in simple words but it really communicates in emotion and I don’t know if there’s a better tool for doing that other than music.