Question: German musicologist Beatrix Borchard spent a great deal of her career focusing on female musicians, including which 19th-century Romantic-era professional pianist?

full_context: Document 1: Eleanor Mlotek: Eleanor Chana Mlotek (née Gordon; April 9, 1922 – November 4, 2013) was a musicologist, specializing in Yiddish folklore. Isaac Bashevis Singer, the Yiddish writer and Nobel laureate, once called Mrs. Mlotek and her husband, Joseph, “the Sherlock Holmeses of Yiddish folk songs.” WorldCat lists her as author of 70 works in 112 editions, in 6 languages. They include both collections of music and exhibition catalogs of Yiddish authors. She held the position of Music Archivist at the YIVO Institute for Jewish Research, and was also a columnist at the "Yiddish Forward" for over forty years. She was born in Brooklyn and is the mother of Zalmen Mlotek, the artistic director of the Folksbiene.
Document 2: Lydia Goehr: Lydia Goehr is a Professor of Philosophy at Columbia University. Her research specialties include the philosophy of music, aesthetics, critical theory, the philosophy of history, and 19th- and 20th-century philosophy. Goehr was born in London, on January 10, 1960. She is the daughter of the composer Alexander Goehr and granddaughter of Walter Goehr. She received her Ph.D. from Cambridge University, where her dissertation on the ontology of music was supervised by Bernard Williams. In addition to her permanent appointment at Columbia, Goehr has accepted a number of visiting appointments, including a position as Visiting Ernest Bloch Professor at UC Berkeley's music department in 1997, as the visiting Aby Warburg Professor at the University of Hamburg in 2002-2003, as a visiting professor at the Freie Universität in Berlin in 2008, and as a visiting professor in the Fu-Berlin SFB Theater und Fest in 2009.
Document 3: Grand Duo Concertant (Weber): The Grand Duo Concertant, Opus 48, J204, is a three-movement work for clarinet and piano composed by Carl Maria von Weber from 1815 to 1816. It is a virtuosic piece for both instruments. Weber most likely composed the work for himself (on piano) and his friend Heinrich Baermann, a leading clarinettist of the era, although it has also been suggested that the intended clarinettist was Johann Simon Hermstedt.
Document 4: Fanny Mendelssohn: Fanny Mendelssohn (14 November 1805 – 14 May 1847), later Fanny [Cäcilie] Mendelssohn Bartholdy and, after her marriage, Fanny Hensel, was a German pianist and composer. She composed over 460 pieces of music. Her compositions include a piano trio and several books of solo piano pieces and songs. A number of her songs were originally published under her brother, Felix Mendelssohn's, name in his opus 8 and 9 collections. Her piano works are often in the manner of songs, and many carry the name "Lied ohne Worte" ("Song without Words"). She also wrote, amongst other works for the piano, a cycle of pieces depicting the months of the year, "Das Jahr" ("The Year"). The music was written on coloured sheets of paper, and illustrated by her husband Wilhelm Hensel. Each piece was also accompanied by a short poem.
Document 5: Alexandra Röseler: Alexandra Röseler is a German mezzo-soprano and pianist. She won the 1988 Schiller Prize of the Nationale Forschungs- und Gedenkstätten der klassischen Deutschen Literatur Weimar. After a period studying at the University of Magdeburg from 1992, she began a career as a concert pianist, performing for example Schumann's Piano Concerto. By the late 1990s, she had furthered her studies, studying vocal performance under Regina Werner at the University of Music and Theatre in Leipzig. Röseler has since appeared in numerous recordings and recitals of baroque music as a mezzo-soprano and alto and has performed regularly with the Thomanerchor. In 2003 she recorded Bach's cantata, "O heilges Geist- und Wasserbad", BWV 165, with Gotthold Schwarz, Thomanerchor, Gewandhausorchester, Heike Kumlin  and Martin Krumbiegel, singing the alto part.
Document 6: Geliebte Clara: Geliebte Clara ("Beloved Clara") is a Franco-German-Hungarian 2008 film, directed by Helma Sanders-Brahms, her last film before her 2014 death, about the pianist Clara Schumann and her marriage with the composer Robert Schumann.
Document 7: Carl Maria von Weber: Carl Maria Friedrich Ernst von Weber (18 or 19 November 1786 5 June 1826) was a German composer, conductor, pianist, guitarist and critic, and was one of the first significant composers of the Romantic school.
Document 8: Marie Wieck: Marie Wieck (January 17, 1832 – November 2, 1916) was a German pianist, singer, piano teacher, and composer. She was the daughter of renowned piano teacher Friedrich Wieck, and the sister of Clara Schumann who was some 12 years older.
Document 9: Béla Bartók: Béla Viktor János Bartók ( ; ] ; 25 March 1881 – 26 September 1945) was a Hungarian composer, pianist and an ethnomusicologist. He is considered one of the most important composers of the 20th century; he and Liszt are regarded as Hungary's greatest composers . Through his collection and analytical study of folk music, he was one of the founders of comparative musicology, which later became ethnomusicology.
Document 10: Hans von Bülow: Baron Hans Guido von Bülow (January 8, 1830February 12, 1894) was a German conductor, virtuoso pianist, and composer of the Romantic era. One of the most famous conductors of the 19th century, his activity was critical for establishing the successes of several major composers of the time, especially Richard Wagner and Johannes Brahms. Alongside Carl Tausig, Bülow was perhaps the most prominent of the early students of Hungarian virtuoso pianist, conductor and composer Franz Liszt – therein performed the first public performance of Liszt's Sonata in B minor in 1857. He became acquainted with, fell in love and eventually married Liszt's daughter Cosima, who later left him for Wagner. Noted for his interpretation of the works of Ludwig van Beethoven, he was one of the earliest European musicians to tour the United States.
Document 11: Women in music: Women in music describes the role of women as composers, songwriters, instrumental performers, singers, conductors, music scholars, music educators, music critics/music journalists and other musical professions. As well, it describes music movements (e.g., women's music, which is music written and performed by women for women), events and genres related to women, women's issues and feminism. In the 2010s, while women comprise a significant proportion of popular music and classical music singers, and a significant proportion of songwriters (many of them being singer-songwriters), there are few women record producers, rock critics and rock instrumentalists. Notable women artists in pop, such as Bjork and Lady Gaga have commented about sexism and gender discrimination in the music industry. In classical music, although there have been a huge number of women composers from the Medieval period to the present day, women composers are significantly underrepresented in the commonly performed classical music repertoire, music history textbooks and music encyclopedias; for example, in the "Concise Oxford History of Music", Clara Schumann is one of the only female composers who is mentioned.
Document 12: 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. 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".
Document 13: Women in music education: Women in music education describes the role of women musicians, conductors, teachers and educational administrators in music education at the elementary school and secondary education levels. While music critics argued in the 1880s that "...women lacked the innate creativity to compose good music" due to "biological predisposition", later, it was accepted that women would have a role in music education, and they became involved in this field "...to such a degree that women dominated music education during the later half of the 19th century and well into the 20th century." "Traditional accounts of the history of music education [in the US] have often neglected the contributions of women, because these texts have emphasized bands and the top leaders in hierarchical music organizations." When looking beyond these bandleaders and top leaders, women had many music education roles in the "...home, community, churches, public schools, and teacher-training institutions" and "...as writers, patrons, and through their volunteer work in organizations."
Document 14: Friedrich Wieck: Johann Gottlob Friedrich Wieck (18 August 1785 – 6 October 1873, aged 88) was a noted German piano teacher, voice teacher, owner of a piano store, and music reviewer. He is remembered as the teacher of his daughter, Clara, a child prodigy who was undertaking international concert tours by age eleven and who later married her father's pupil Robert Schumann, in defiance of her father's extreme objections. As Clara Schumann, she became one of the most famous pianists of her time. Another of Wieck's daughters, Marie Wieck, also had a career in music, although not nearly so illustrious as Clara's. Other pupils included Hans von Bülow.
Document 15: Beatrix Borchard: Beatrix Borchard (born 1950) is a German musicologist and author. The focus of her publications is life and work of female and male musicians, such as Clara and Robert Schumann, Amalie and Joseph Joachim, Pauline Viardot-Garcia, Adriana Hölszky. Among her topics are also the role of music in the process of Jewish assimilation, the history of musical interpretation, and strategies of .
ground_truth: Clara Schumann