Sister Rosetta Tharpe with Katie Bell holding her daughter's guitar.  Tharpe gets the star treatment in a new documentary for the PBS series "American Masters." “Sister Rosetta Tharpe: The Godmother of Rock & Roll” will be broadcast Friday (Feb. 22) on PBS in honor of Black History Month.  RNS photo by Charles Peterson courtesy PBS American Masters.

Sister Rosetta Tharpe with Katie Bell holding her daughter’s guitar. Tharpe gets the star treatment in a new documentary for the PBS series “American Masters.” “Sister Rosetta Tharpe: The Godmother of Rock & Roll” will be broadcast Friday (Feb. 22) on PBS in honor of Black History Month. RNS photo by Charles Peterson courtesy PBS American Masters.