paragraph_text: Oliver Hilmes (born 1971 in Viersen, Germany) is a German author who has written several historical biographies. His study of Cosima Wagner, the daughter of the 19th century composer Franz Liszt and his biography of Alma Mahler a Viennese-born socialite, have been translated into English.

paragraph_text: Jasper Ridley (25 May 1920 – 1 July 2004) was a British writer, known for historical biographies. He received the 1970 James Tait Black Memorial Prize for his biography "Lord Palmerston".

paragraph_text: Ashur Bet Sargis was born in Baghdad, Iraq to an Assyrian family, who were originally from Habbaniyah. He started playing organ as a teenager at the local Assyrian church. He later began composing nationalistic songs under the influence of established Assyrian musicians such as Evin Aghassi and King Biba, as well as western artists. As Ashur recalls of his early days in the biography written for his 4-CD set “Everything So far”:

paragraph_text: 920 Biography & genealogy 920 Biography, genealogy, insignia 921 - 928 This range is reserved as an optional location for biographies, which are shelved alphabetically by subject's last name. 929 Genealogy, names, insignia

paragraph_text: Wolfgang Amadeus Mozart died after a short illness on 5 December 1791, aged 35. His reputation as a composer, already strong during his lifetime, rose rapidly in the years after his death, and he became (as he has remained to this day) one of the most celebrated of all composers.

paragraph_text: Charles Whitney Coombs (1859, Bucksport, Maine – 1940, Montclair, New Jersey) was an American composer and organist. He was prolific in both sacred and secular music.

paragraph_text: George Robert Twelves Hewes (August 25, 1742 – November 5, 1840) was a participant in the political protests in Boston at the onset of the American Revolution, and one of the last survivors of the Boston Tea Party and the Boston Massacre. Later he fought in the American Revolutionary War as a militiaman and privateer. Shortly before his death at the age of 98, Hewes was the subject of two biographies and much public commemoration.

paragraph_text: Armide is an opera by Jean-Baptiste Lully. The libretto by Philippe Quinault is based on Torquato Tasso's poem "La Gerusalemme liberata" ("Jerusalem Delivered"). The work is in the form of a tragédie en musique, a genre invented by Lully and Quinault.

paragraph_text: Donald James Winslow (1911 – 10 July 2010) was a professor at Boston University in Boston, United States who specialized in the subject of biography.

paragraph_text: Herbert Lottman (August 16, 1927, Brooklyn – August 27, 2014, Paris) was an American author who specialized in writing biographies on French subjects. An influential biographer, he published 17 biographies, 15 of which were related to French culture, commerce, or politics; including works on Albert Camus, Colette, Gustave Flaubert, Henri Philippe Pétain, Jules Verne, and the Rothschild banking family of France. He wrote that, just before dying, Albert Camus was pledged to marry. Camus's estate tried to block his book, partly because of this controversial statement.

paragraph_text: The Mozart is the best known, if only because the composer's output receives more examination. Composed in March to July 1771 when Mozart was 15 years old, K. 118 (74c) is a 140-minute "azione sacra" on a text by Metastasio tracing the story of Judith and Holofernes from the biblical "". It was commissioned in March 1771 by Giuseppe Ximenes, Prince of Aragon, while Mozart and his father Leopold were on the way home to Salzburg from their first journey to Italy. It is the only oratorio Mozart ever wrote. Its two parts comprise sixteen arias, with solo or choral parts, scored for soloists, choir and orchestra. Not performed in Mozart's lifetime, "La Betulia liberata" is shaped stylistically to works by Leonardo Leo and Johann Adolph Hasse.

paragraph_text: The original music score was composed, orchestrated and conducted by Michael Kamen. An excerpt from the main title music was subsequently used as the logo music for Morgan Creek.

paragraph_text: Since then, he has published a summary of the history of geology in Canada, and short biographies of Canadian geologists. Another Canadian geologist Joseph William Winthrop Spencer (1851–1921; born in Dundas, ON) was the subject of a more extensive study. He has also published historical studies of geologists elected the Royal Society of Canada during its first fifty years, and the history of the earth sciences during the twentieth century. During the last five years he has studied the source of the stone used for building in nineteenth-century southern Ontario.

paragraph_text: Rinaldo (HWV 7) is an opera by George Frideric Handel, composed in 1711, and was the first Italian language opera written specifically for the London stage. The libretto was prepared by Giacomo Rossi from a scenario provided by Aaron Hill, and the work was first performed at the Queen's Theatre in London's Haymarket on 24 February 1711. The story of love, war and redemption, set at the time of the First Crusade, is loosely based on Torquato Tasso's epic poem "Gerusalemme liberata" ("Jerusalem Delivered"), and its staging involved many original and vivid effects. It was a great success with the public, despite negative reactions from literary critics hostile to the contemporary trend towards Italian entertainment in English theatres.

paragraph_text: In his native Poland, in France, where he composed most of his works, and beyond, Chopin's music, his status as one of music's earliest superstars, his association (if only indirect) with political insurrection, his love life and his early death have made him, in the public consciousness, a leading symbol of the Romantic era. His works remain popular, and he has been the subject of numerous films and biographies of varying degrees of historical accuracy.

paragraph_text: The Maid of Orleans (, "Orleanskaja deva") is an opera in 4 acts, 6 scenes, by Pyotr Ilyich Tchaikovsky. It was composed during 1878–1879 to a Russian libretto by the composer, based on several sources: Friedrich Schiller’s "The Maid of Orleans" as translated by Vasily Zhukovsky; Jules Barbier’s "Jeanne d’Arc" ("Joan of Arc"); Auguste Mermet’s libretto for his own opera; and Henri Wallon’s biography of Joan of Arc. Dedicated to conductor Eduard Nápravník, this work represents the composer's closest approach to French grand opera, albeit in the Russian language, notably with its inclusion of a ballet in Act 2.

paragraph_text: Tracks 1 -- 9 are composed by Trevor Jones except for the main theme which is composed by Dougie MacLean; tracks 10 -- 15 are by Randy Edelman.

paragraph_text: The International Who's Who in Music is a biographical dictionary and directory originally published by the International Biographical Centre located in Cambridge, England. It contains only biographies of persons living at the time of publication and includes composers, performers, writers, and some music librarians. The biographies included are solicited from the subjects themselves and generally include date and place of birth, contact information as well as biographical background and achievements.

paragraph_text: The Nouvelle Biographie Générale ("New General Biography"), was a 46-volume, French-language, biographical reference work, compiled between 1852 and 1866 by Ferdinand Hoefer, French physician and lexicographer.

paragraph_text: Anton Urspruch (17 February 1850 in Frankfurt am Main – 11 January 1907 in Frankfurt am Main) was a German composer and pedagogue who belonged to the late German Romantic era.

Question: What is the main subject of biograhies of the composer of Betulia liberata?
Answer: Wolfgang Amadeus Mozart