Director Alfonso Maiorana’s new documentary, “Goddess of Slide,” tells the story of Ellen McIlwaine, a pioneering singer-songwriter and slide guitarist who should have been a household name. Born in Nashville and raised in Japan, Ellen played with the likes of Jimi Hendrix, Johnny Winter and Taj Mahal before ultimately settling down in Calgary where she worked as a school bus driver in the last decade of her life. Now, she’s finally receiving her rightful place in music history. Alfonso joins Tom Power to tell us more about her remarkable life and legacy.