Melodiously off-beat. That’s the oxymoron that describes the 8th LP, Bitte Orca, released by Dirty Projectors in June of 2009. Leadman Dave Longstreth is not so lead in this album, lending his hauntingly boyish voice to only a couple songs, and letting Amber Coffman and Angel Deradoorian, both lead vocals, to couple up, spice up,