For Postcards, folk-pop singer Pieta Brown fleshed out her rustic sketches with a little help from friends

For her atmospheric new album Postcards (Lustre) folk-pop singer Pieta Brown enlisted a wide variety of colleagues to help flesh out arrangements. She didn’t convene the disparate crew in a single recording studio, but instead sent out loose husks of her new material, inviting collaborators to finish off her ten songs.…