August Wilhelm Julius Rietz (28 December 1812 in Berlin – 12 September 1877 in Dresden) was a German composer, conductor, cellist, and teacher. His students included Woldemar Bargiel, Salomon Jadassohn, Arthur O'Leary, and (by far the most celebrated) Sir Arthur Sullivan. He also edited many works by Felix Mendelssohn for publication.
Rietz studied the cello under Bernhard Romberg. At 16, he joined the orchestra of Berlin's Königstädter Theater, for which he wrote the music to Karl Eduard von Holtei's play Lorbeerbaum und Bettelstab. In 1834, he was appointed assistant conductor at the Düsseldorf Opera under Mendelssohn, whom he succeeded the following year. He moved in 1847 to Leipzig, where he served as kapellmeister and conductor of the Singakademie. During 1848, a year after Mendelssohn's death, Rietz took over Mendelssohn's former role as conductor of the Gewandhaus concerts in the same city, and as teacher of composition at the conservatoire there. He was called to Dresden in 1860 to succeed Carl Gottlieb Reissiger as court kapellmeister. Here he spent the rest of his life, frequently appearing as an opera conductor, and also undertaking the direction of the royal conservatoire.
In terms of his own composing, Rietz belonged to the classically inclined school (Mendelssohn's output, as might be expected, had a big influence upon him) and he was strongly opposed to the musical radicalism of Liszt and Wagner. Among his works are the operas, three symphonies, several overtures to plays, flute sonatas, violin sonatas, motets, masses, psalms, and a quantity of other church music.
- Jery und Bätely (1839)
- Das Mädchen aus der Fremde (1839)
- Der Korsar (1850)
- Georg Neumann und die Gambe (1859)
- Symphony No. 1 in G minor, Op. 13 (1843)
- Symphony No. 2 in A major, Op. 23 (1846?)
- Symphony No. 3 in E-flat major, Op. 31 (1855)
- Concert Overture in A major, Op. 7
- Hero und Leander, Op. 11
- Lustspielouvertüre, Op. 53
- Clarinet Concerto, Op. 29
- Concert Piece for Oboe and Orchestra, Op. 33
- Cello Concerto, Op. 16
The Louisville Orchestra First Edition series contained, besides many works mostly by modern composers (usually American), Rietz' Concert Overture, opus 7 (coupled with the second symphony of Max Bruch), and recorded around 1970. This may have been the same concert overture commissioned by the Lower Rhenish Music Festival to commemorate an anniversary .
- Dwight, John Sullivan (October 27, 1877). "Dr. Julius Rietz". Dwight's Journal of Music. 37 (15): 113. (Excerpt from October 1877 London Musical Times obituary, with birth and death dates and some biography)
- "Sleeve-notes for Recording of Bargiel and Mendelssohn Octets". Hyperion Records. 1989. Retrieved 2007-11-02.
- "Arthur Sullivan in Memoriam". Musical Times. December 1900. Archived from the original on 2007-10-28. Retrieved 2007-11-02.
- Gilman, D. C.; Peck, H. T.; Colby, F. M., eds. (1905). "Rietz, Julius". New International Encyclopedia (1st ed.). New York: Dodd, Mead.
- "Louisville Orchestra LS 703", 1970 series, number 3: with Jorge Mester conducting the orchestra. Note "Library Catalog Permalink for a reference to this long-playing record". Cornell University. Retrieved 2007-11-02.
- Dwight, John Sullivan (August 6, 1864). "The Forty-First Musical Festival of the Lower Rhine". Dwight's Journal of Music: A Paper of Art and Literature. 24 (10): 282–3. Retrieved 2007-11-02.
- Fuller-Maitland, John A.; Grove, George (1883). A Dictionary of Music and Musicians (A.D. 1450-1880). London: Macmillan. pp. 132–133. OCLC 19025639.