What a beautiful song and background story.  Very touching.  Reminds me of loosing my Mentor a few years back and the incredible void that is left behind.  My wife and I decided after work on Thursday to go see GPN at the HOB in Myrtle Beach.  Drove 4 1/2 hours and walked through the door just as they were beginning the set with TLTBTB.  Stadium show in Charlotte (this Sunday) is much closer, but a 1/2 hour of GPN is just not going to cut it in my book.  The band played several from the new album and mixed in their older album material along with White Rabbit.  Seventeen songs by my count and played a non-stop 1 1/2 hour set.  The band continues to hone their skills and Grace was her amazing self (as ususal).  In the end, we made the right call, great show and much better than the stadium event (IMHO).  Can't wait to see her again!