Adolf Bernhard Marx

Friedrich Heinrich Adolf Bernhard Marx (15 March 1795, Halle – 17 May 1866, Berlin) was a German composer, musical theorist and critic.

Marx was the son of a Jewish doctor in Halle who, though a member of the congregation, was according to his son a convinced atheist. Marx was given the names 'Samuel Moses' at birth, but changed these at his baptism in 1819.

He began his career studying law at Halle, but also learned musical composition there—a fellow student was the composer Carl Loewe. In 1821 he went to Berlin, where in 1825 Adolf Martin Schlesinger appointed him editor of the music journal he had founded, the Berliner allgemeine musikalische Zeitung. Marx's intellectual critiques were appreciated by, amongst others, Beethoven, although they often offended the Berlin establishment, including Carl Friedrich Zelter.

Marx became an intimate of the family of Felix Mendelssohn, who was greatly influenced by Marx's ideas about the representational qualities of music—Marx's influence in the revision of Mendelssohn's overture to 'A Midsummer Night's Dream' (1826) was noted by their mutual friend Eduard Devrient in his memoirs. After Mendelssohn's revival of J. S. Bach's St. Matthew Passion in 1829, Marx persuaded Schlesinger to undertake the publication of this work, making Bach's masterpiece accessible to scholars for the first time. As Mendelssohn matured however the two drifted apart. At one time each agreed to write the libretto for an oratorio to be composed by the other. Mendelssohn wrote a text on the subject of Moses, while Marx wrote one on the subject of St. Paul. However Mendelssohn's later oratorio on St. Paul used an extensively revised text; and when Marx asked Mendelssohn to perform his Moses in 1841 in Leipzig, Mendelssohn refused because of its poor quality. The enraged Marx thereupon threw his extensive correspondence with Mendelssohn into the river, and it has therefore been lost forever. ' Moses ' was eventually given a performance by Liszt at Weimar in 1853.

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