Is it possible to have an artistic career whose arc doesn't seem to ever bend downward at any point? Sara Bareilles seems to be enjoying such a thing, after "Love Song" took over the world in 2007, and her Little Voice LP blew up. Since then it's been over a decade of nothing but tours, and awards, and albums, and books, and an ever growing fanbase—which exploded upon her taking over Broadway via her musical adaptation of Adrienne Shelley's low-key indie classic Waitress. She stops in Portland as part of her "Amidst the Chaos" tour, supporting an album that might be her most meaningful to date.