Chaka Khan's catalog of exemplary funk and soul seems bottomless. She celebrates her gender on funkified “I'm a Woman (I'm a Backbone)” and jazz-scats effortlessly on “Jive Talkin',” all with that silky yet emotional vocal tone and mountain-scaling range. Meanwhile, her lasting influence is on clear display with “Disrespectful,” a brassy funk throwback with R&B prodigy Mary J. Blige.