For many, retirement means having more time to finally explore a life-long passion.  For a lucky few, that kind of passion is a primary focus throughout life.  Henri-Louis De La Grange is one of those lucky few. His devotion to Gustav Mahler, both his life and music, has led La Grange around the world. He’s also written a mammoth 4 volume biography of the esteemed musician. Now 91 years old, La Grange is the subject of a new documentary. The excellent blogger Jesse Kornbluth (aka The Head Butler) gives you the details of this film and the life of La Grange. To see what drives a man of passion, put on your headphones and Read This.