I have an inner dialogue, or at least I think I do. When I picked up meditation, I think I learned how to have it stop. Or at least so I don't notice it is occurring. It feels like instead of some of my brain resources being devoted to thinking or analyzing all my focus is shifted on the state of me, skin temperature, wind feel, sounds.
Interesting, I was picking up meditation too around the time I had this experience, though I was not (intentionally) meditating while listening to the record.
To this day, I don't know how to stop the dialog reliably, but I know some activities and some music that help me do that (Metal Machine Music from Lou Reed works great for me, for example).
