The trailer music we heard in the Star Wars: The Force Awakens teaser is not John Williams’ work. Slash Film has an interesting tidbit in its article on the music of the trailer:
However, we do know some of the people involved: Frederick Lloyd says he has contributed music to the latter half of the trailer, namely the “Force Theme,” while John Samuel Hanson of Confidential Music worked on the first half of the trailer music. Trailer editors Josh Dunn and Brent Rockswold helped complete the edit of the trailer you see before you. But we’ve heard there are others involved with both the edit and the music.
While recording the podcast this week, we were discussing how cool that music is. I said it reminded me of the classic theme but it had a Star Trek vibe to it. I really love the work done for the trailer and it has actually made me confident in idea that other composers using John Williams’ leitmotifs might do some pretty amazing soundtracks in the future (Rogue One we’re looking at you!).