Amos???s ???Night Of Hunters,??? streaming on npr.org, is a concept album based on compositions by such composers as Chopin, Schubert and Bach, which Amos has amended and formed to tell a story of a woman???s journey through a relationship and then on her own. (Amos fans, of course, understand that it???s never that simple in her world and that this project brings in shapeshifters, poets, and the