Mary Gauthier is one of the very best American singer-songwriters. In “Saved by a Song,” she plays audience favorites from her eleven studio albums, accompanied by guitarist and singer Jaimee Harris. In between, she reads excerpts from her book of the same name about her eventful life. Gauthier was abandoned as a baby – she never knew her mother – she left her foster parents as a teenager, became homeless and was addicted to drugs. When, at 28, she ends up in a police cell for drunk driving, she realizes it’s 5 to 12. She has to kick the habit. Folk music turns out to be her salvation. In the years that followed, she became one of the most appreciated Americana singers in the world, expressing her life in powerful, honest and moving songs. Bob Dylan is a fan, she tours with Willie Nelson and is showered with awards. A guitar, a bottle of water and a bar stool: that’s all Gauthier needs for the heart-stirring “Saved by a Song.