One of my favorite art experiences this year was seeing Bruce Conner’s short film Crossroads at The Whitney. (It’s part of the Dreamlands exhibition, on view until Feb 5, 2017.) The film pairs slow-motion clips of the 1946 nuclear tests at Bikini Atoll with music from composers Patrick Gleeson and Terry Riley. The result is mesmerizing…the film’s 37 minutes long and I sat through the entire thing and will likely go back once more before the show closes. Riley’s portion of the music was particularly memorable for me…I would love to have a recording of that. Neither the film or the music is available online, save for the short clip at the bottom of this page, so you’ll have to go to The Whitney or SFMOMA, where it also happens to be showing.
Update: It’s not an exact match, but this 51-minute song from Riley called Descending Moonshine Dervishes is quite close to the music he did for Crossroads.