In Johann Sebastian Bach's music, border crossings become audible, accompanying our lives: In his church music, the boundary between the secular and the divine is explored through many themes, and in the "Art of Fugue," one can almost hear death as one voice after another fades away. Andreas Kruse, a leading researcher in aging, gerontopsychologist, and trained musician, describes in this fascinating book the border crossings of the elderly Bach as a creative and psychologically intriguing art of living. Johann Sebastian Bach serves as a biographical case study for coping with crises in life, leading to a psychological discovery that also resonates in his late musical works.