Say hello to your new favorite eclectic folk rock band. Say “Oh, hello,” that is. Texas brother-sister duo Maggie and Tyler Heath, who make beautiful music under the moniker The Oh Hellos, have sung their way into my heart with their first full-length record, Through the Deep, Dark Valley, released independently on October 30. The self-proclaimed “concept album” works best when its tracks are heard all together, chronologically. But the lyrically-rich, harmony-full songs also hold their own as individual stories of longing and innocence with a twinge of mysticism.