Art has long been a way for people to honor and memorialize things in life that elude description in words. On this solemn date, today’s Beautiful Music is a work by American composer John Adams that is a direct reaction to the 9/11 attacks. ON THE TRANSMIGRATION OF SOULS is a composition for orchestra, chorus, children’s choir, and tape recording. Adams calls it a “memory space” and said, “It’s a place where you can go and be alone with your thoughts and emotions.”