I'd like to make a VR animation for one song to show others how it looks sometime. There are some videos produced by others but I don't think they give the full experience and they are missing something. On the other hand, I'm happy I don't have this ability normally because I would've probably gotten involved in some music-related field and that might not be a great career path. It seems to make music composition much more intuitive and just "obvious."
A couple good books on the subject: "Oxford Handbook of Synesthesia" and "Sensory Blending: On Synaesthesia and related phenomena."