I'm really not very good at this, but this is what I think I hear: either B B D F#, G G D F#, E E D F#, F# F# D F#. Or it could also be B B D F#, A A D F#, G G D F#, A A D F#.
Like I said, I'm not really good at this, but fool around with that pattern and see if you can figure it out. I think I'm close, at least in pattern idea, but I'm not sure that I'm right.
Edit: next post is closer, now that I have had a couple more listens. Surely somebody who is better at this than I am can take what I've started with and fine tune out the errors. Guys?