Aretha Franklin is rightly revered as one of the great singers of all time – the single greatest, according to Rolling Stone's official rankings – but sometimes that overshadows her other talents, including her songwriting and her piano playing. On the night of March 6th, 1971, in the middle of a three-show stand at the Fillmore West in San Francisco, Franklin sat down at the piano and for nine astonishing minutes, showed off everything she could do with "Dr. Feelgood," a blues song she wrote four years earlier for her breakthrough album I Never Loved a Man The Way I Love You. She took that performance from the Fillmore to the bedroom to church, and then back again.
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