Dirty Projectors vocal technique

As an add-on to yesterday's post about the physical release of Mount Wittenberg Orca by Dirty Projectors & Bjork on Domino Records, here's a great piece of video - part interview, part workshop - of David Longstreth discussing, and Amber Coffman and Angel Deradoorian demonstrating, the vocal techniques at play on Mount Wittenberg Orca, as well as DP's previous album Bitte Orca. Go straight to about 7 minutes in to hear the women do their thing. It's a little bit staggering.