Dirty Projectors frontman, Dave Longstreth, has suffered through a multitude of lineup changes throughout his band’s 15 year stretch, but no shake-up has been more devastating than Amber Coffman’s departure. With this split from his girlfriend and final bandmate, Longstreth is solo once more. Coffman’s vocals were a staple of the band’s unique, Brooklynite, indie-pop style, and on Longstreth’s latest album, Dirty Projectors, her absence haunts every lyric. Longstreth is mournful – painting, in broad strokes, images of love, loss, and loneliness. Sonically, the album spins from one bold arrangement to the next. In all his isolation, Longstreth has made time for collaboration, the standout being “Cool Your Heart,” a whirling, calypso pop jam featuring DΔWN and co-written by Solange. Featured Music Friday is brought to you by Blackfire Research.