Question: What Austrian composer of Um Mitternacht was best known for his symphonies, masses, and motels?
Context: Christoph Straus (1575–1631) was an Austrian composer, cantor and organist.  His church music includes polyphonic pieces and polychoral Masses, including a notable Requiem for high and low choirs.  Although his textures were, by current standards, old-fashioned at the time, his word painting proves his acquaintance with the newest Italian music.  He was employed as Court composer by Emperor Ferdinand II from 1616 to 1620 and rose to the post of Kapellmeister in St Stephen's Cathedral.  He wrote 36 motets (published in 1613) and 16 surviving masses (1631).  His later compositions require a wide variety of orchestral colours. Um Mitternacht ("At midnight"), WAB 90, is a song composed by Anton Bruckner in 1886 on a text of Robert Prutz.  About twenty years earlier Bruckner had already composed a song on the same text. Luigi Lamberti (22 October 1769 – after 1812) was an Italian composer of operas and other pieces.  He was born in Savona and, like Francesco Gnecco, he studied with Mariani, the "maestro di capella" of the Savona cathedral.  Once his master died, he succeeded to the position.  However, he was said to be of a "restless spirit" and abandoned the position.  Moving to Paris in 1806, he published a number of compositions dedicated to princess Pauline Bonaparte.  In Italy, he composed the operas "Orfeo" (1796), "L' Amante Schernito", and "I Due Fratelli Originali".  He was prolific.  He also composed various masses; vespers and hymns including two "Tantum ergo" and a "Miserere"; motets; concertos for three, four and five strings; and symphonies, among them are two titled "Pubblio Claudio" and "The Death of Louis XVI".  While he lived in Paris in 1812, it is not known what became of him afterward. Franz Schubert (31 January 1797 – 19 November 1828) was an extremely prolific Austrian composer.  He composed some 1500 works (or, when collections, cycles and variants are grouped, some thousand compositions).  The largest group are the lieder for piano and solo voice (over six hundred), and nearly as many piano pieces.  Schubert also composed some 150 part songs, some 40 liturgical compositions (including several masses) and around 20 stage works like operas and incidental music.  His orchestral output includes a dozen symphonies (seven completed) and several overtures. Schubert's chamber music includes over 20 string quartets, and several quintets, trios and duos. The Motels are an American new wave band from Berkeley, California that is best known for the singles "Only the Lonely" and "Suddenly Last Summer"---each of which peaked at No. 9 on the "Billboard" Hot 100, in 1982 and 1983, respectively.  In 1980, The Motels song "Total Control" reached No. 7 on the Australian chart (for two weeks), and their song "Danger" reached No. 15 on the French chart. The Symphony No. 52 in C minor is one of the last "Sturm und Drang" symphonies composed by the Austrian composer Joseph Haydn while the composer was in residence at Esterházy in 1771 or 1772. Josef Anton Bruckner (] ; (1824--)04 1824 (1896--)11 1896 ) was an Austrian composer best known for his symphonies, masses, and motets.  The first are considered emblematic of the final stage of Austro-German Romanticism because of their rich harmonic language, strongly polyphonic character, and considerable length.  Bruckner's compositions helped to define contemporary musical radicalism, owing to their dissonances, unprepared modulations, and roving harmonies. Franz Asplmayr (1 April 1728 – 29 July 1786) was an Austrian composer and violinist.  There are many variants of his name, including Franz Aspelmayr, Franz Aschpellmayr and Franz Appelmeyer.  He is best known for an opera on Greek myths, and for a few symphonies and string trios of his which were attributed to Joseph Haydn at one time.  Among the few scholars who have studied his music, there are many differing opinions as to the quality.  J. Murray Barbour, for one, deems Asplmayr's 80 minuets "scored mostly for oboes, horns, and strings, without violas," that "all are extremely boring, as if written between beers."  Temperly, on the other hand, finds advances "with respect to harmony and developmental techniques." Cristiano Giuseppe Lidarti (Vienna 23 February 1730 – Pisa 1795) was an Austrian composer, born in Vienna of Italian descent.  Lidarti is best known for his rediscovered oratorio "Esther" composed in Hebrew for the Jewish community in Amsterdam.  The text may have been prepared for Lidarti by the Jewish composer Abraham Caceres. Alfred Prinz (4 June 1930 – 20 September 2014) was an Austrian composer, clarinetist, and music educator.  In 1947 he was awarded a Gold Medal at the Geneva Music Competition and in 1971 he won a composition award from the city of Vienna.  His compositional output includes 7 symphonies, many concertos, several works for solo piano, songs, and chamber music.  In 1998 his "Fünf Goethe-Lieder" (Five Goethe Songs) were premiered by soprano Caroline Dowd-Higgins for whom Prinz had composed the pieces.  As a concert clarinetist, he has performed as a soloist with orchestras throughout the world and performed in concerts of chamber music internationally.  He has recorded for Ariola Records, Decca Records, Deutsche Grammophon, His Master's Voice, and the Telarc International Corporation among other record labels.
Answer: Anton Bruckner