[PAR] [TLE] Clara Schumann [SEP] 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.  She exerted her influence over a 61-year concert career, changing the format and repertoire of the piano recital and the tastes of the listening public.  Her husband was the composer Robert Schumann.  Together they encouraged Johannes Brahms.  She was the first to perform publicly any work by Brahms.  She later premiered some other pieces by Brahms, notably the "Variations and Fugue on a Theme by Handel". [PAR] [TLE] Liebeslieder Walzer, Op. 52 (Brahms) [SEP] Johannes Brahms' Liebeslieder Waltzes ("Liebeslieder-Walzer") are distributed across two opus numbers: Op. 52 and Op.  65.  The waltzes are a collection of love songs in Ländler style for voices and piano four hands.  The lyrics for the "Liebeslieder" come from Georg Friedrich Daumer's "Polydora", a collection of folk songs and love poems.  While there is no concrete record indicating the exact inspiration for the Waltzes, there is speculation that Brahms' motivation for the songs was his frustrated love for pianist Clara Schumann, composer Robert Schumann's wife.
[PAR] [TLE] Clara Schumann [ SEP ] 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 . She exerted her influence over a 61-year concert career , changing the format and repertoire of the piano recital and the tastes of the listening public . Her husband was the composer Robert Schumann . Together they encouraged Johannes Brahms . She was the first to perform publicly any work by Brahms . She later premiered some other pieces by Brahms , notably the " Variations and Fugue on a Theme by Handel " . [PAR] [TLE] Liebeslieder Walzer , Op . 52 ( Brahms ) [ SEP ] Johannes Brahms ' Liebeslieder Waltzes ( " Liebeslieder - Walzer " ) are distributed across two opus numbers : Op . 52 and Op . 65 . The waltzes are a collection of love songs in Ländler style for voices and piano four hands . The lyrics for the " Liebeslieder " come from Georg Friedrich Daumer 's " Polydora " , a collection of folk songs and love poems . While there is no concrete record indicating the exact inspiration for the Waltzes , there is speculation that Brahms ' motivation for the songs was his frustrated love for pianist Clara Schumann , composer Robert Schumann 's wife .
How long was the concert career of the woman that is speculated to be the frustrated love inspiration of Brahms' Liebeslieder Walzer, Op. 52?
How long was the concert career of the woman that is speculated to be the frustrated love inspiration of Brahms ' Liebeslieder Walzer , Op . 52 ?
61-year
61-year