Johann Baptist Joseph Maximilian Reger was a German composer, pianist, organist, conductor, and academic teacher. He worked as a concert pianist, as a musical director at the Leipzig University Church, as a professor at the Royal Conservatory, and as a music director at the court of Duke Georg II of Saxe-Meiningen. Reger first composed mainly "Lieder", chamber music, choral music and works for piano and organ. He later turned to orchestral compositions, such as the popular "Variations and Fugue on a Theme by Mozart" (1914), and to works for choir and orchestra such as "Gesang der Verklärten" (1903), "Der 100. Psalm" (1909), "Der Einsiedler" and the "Hebbel Requiem" (both 1915).