Question: How long was the concert career of the woman that is speculated to be the frustrated love inspiration of Brahms' Liebeslieder Walzer, Op. 52?
Sentence (from "Clara Schumann"): Clara Schumann ("née" Clara Josephine Wieck; 13 September 1819 – 20 May 1896) was a German musician and composer, considered one of the most distinguished pianists of the Romantic era.
Relevant evidence: No