Leopold Auer (Hungarian: Auer Lipót; June 7, 1845 – July 15, 1930) was a Hungarian violinist, teacher, conductor and composer.
Auer wrote a small number of works for his instrument, including the Rhapsodie hongroise for violin and piano. He also wrote a number of cadenzas for other composers' violin concertos including those by Beethoven, Wolfgang Amadeus Mozart and Brahms (see Beethoven Violin Concerto and Brahms Violin Concerto). He also wrote three books: Violin Playing as I Teach It (1920), My Long Life in Music (1923) and Violin Master Works and Their Interpretation (1925). He also wrote an arrangement for Paganini's 24th Caprice (with Schumann's piano accompaniment)later performed by Jascha Heifetz, Henryk Szeryng and Ivry Gitlis, in which the final variation is removed and his own composed. There are also alterations to various passages throughout the piece. Auer edited much of the standard repertoire, concertos, short pieces and all of Bach's solo works. His editions are published mostly by Carl Fischer. He also transcribed a great amount of works for the violin including some of Chopin's preludes. (Hide extended text)...(Read all) Source : Wikipedia