Sufjan Stevens will be scoring a slow-motion documentary called Round-Up at the Brooklyn Academy Of Music. He’ll perform the score live on electronics alongside ensemble Yarn|Wire, who will be playing piano and percussion. The footage was shot by Aaron and Alex Craig at Oregon’s Pendleton Round-Up. Stevens previously collaborated with BAM on last year’s Planetarium and 2007’s The BQE. He’ll perform from January 20th through the 25th. More details can be found here.

UPDATE: Here are some words from Stevens via sufjan.com: