Time lapse of LA's Walt Disney Concert Hall getting prepped for "Mahler Project"

[Video Link] Shayna of LA magazine says:

We have this time-lapse video of the Walt Disney Concert Hall being set up for a rehearsal of Mahler's Symphony no. 8, which will be performed by the LA Phil, the Simon Bolivar Orchestra, and 16 choirs at the Shrine next month. It's a mesmerizing video and quite the production, and thought you might be interested in sharing with your readers.