Complex sentence: Sister Rosetta Tharpe is considered "The Godmother/Grandmother of Rock & Roll" by most music observers, but has yet to be inducted, as the influential soul/funk group Tower of Power has not yet been honored.
Split into simpler sentences: Sister Rosetta Tharpe is considered "The Godmother/Grandmother of Rock & Roll" by most music observers, but has yet to be inducted. Also, the influential soul/funk group Tower of Power has not yet been honored.