Ten years ago three sisters from Oregon, Natalie, Allison and Meegan Closner, released the album “I’m Alone, No You’re Not.” With the song “White Flag” the trio Joseph made it onto The Tonight Show and the Billboard charts, and later to Coachella and Glastonbury. Their strength is powerful three-part harmony and songs that blend folk, indie pop and rock seamlessly. The anniversary show in Portland is a homecoming, back to the songs where it all began.