Question: What Czech operatic contralto had a close partnership with the composer of "The Bartered Bride"?
Sentence (from "Bedřich Smetana"): Bedřich Smetana (] ; 2 March 1824 – 12 May 1884) was a Czech composer who pioneered the development of a musical style which became closely identified with his country's aspirations to independent statehood.
Relevant evidence: Yes