Please answer the following question: Information:  - Johann Georg Leopold Mozart (November 14, 1719  May 28, 1787) was a German composer, conductor, teacher, and violinist. Mozart is best known today as the father and teacher of Wolfgang Amadeus Mozart, and for his violin textbook "Versuch einer gründlichen Violinschule".  - Naples (Neapolitan: "Napule" or ;  meaning "new city") is the capital of the Italian region Campania and the third-largest municipality in Italy, after Rome and Milan. In 2015, around 975,260 people lived within the city's administrative limits. The Metropolitan City of Naples had a population of 3,115,320. Naples is the 9th-most populous urban area in the European Union with a population of between 3 million and 3.7 million. About 4.4 million people live in the Naples metropolitan area, one of the largest metropolises on the Mediterranean Sea.  - Leonardo Vinci (1690  27 May 1730) was an Italian composer, best known for his operas.  - Josef Mysliveek (9 March 1737  4 February 1781) was a Czech composer who contributed to the formation of late eighteenth-century classicism in music. Mysliveek provided his younger friend Wolfgang Amadeus Mozart with significant compositional models in the genres of symphony, Italian serious opera, and violin concerto; both Wolfgang and his father Leopold Mozart considered him an intimate friend from the time of their first meetings in Bologna in 1770 until he betrayed their trust over the promise of an operatic commission for Wolfgang to be arranged with the management of the Teatro San Carlo in Naples. He was close to the Mozart family, and there are frequent references to him in the Mozart correspondence.  - A composer (Latin "compn"; literally "one who puts together") is a person who creates or writes music, which can be vocal music (for a singer or choir), instrumental music (e.g., for solo piano, string quartet, wind quintet or orchestra) or music which combines both instruments and voices (e.g., opera or art song, which is a singer accompanied by a pianist). The core meaning of the term refers to individuals who have contributed to the tradition of Western classical music through creation of works expressed in written musical notation (e.g., sheet music scores).  - A libretto is the text used in, or intended for, an extended musical work such as an opera, operetta, masque, oratorio, cantata or musical. The term "libretto" is also sometimes used to refer to the text of major liturgical works, such as the Mass, requiem and sacred cantata, or the story line of a ballet.  - Bologna (;  ) is the largest city (and the capital) of the Emilia-Romagna Region in Northern Italy. It is the seventh most populous city in Italy, located in the heart of a metropolitan area (officially recognized by the Italian government as a "città metropolitana") of about one million.  - Johann Adolph Hasse (baptised 25 March 1699  16 December 1783) was an 18th-century German composer, singer and teacher of music. Immensely popular in his time, Hasse was best known for his prolific operatic output, though he also composed a considerable quantity of sacred music. Married to soprano Faustina Bordoni and a great friend of librettist Pietro Metastasio, whose libretti he frequently set, Hasse was a pivotal figure in the development of "opera seria" and 18th-century music.  - Wolfgang Amadeus Mozart (; 27 January 1756  5 December 1791), baptised as Johannes Chrysostomus Wolfgangus Theophilus Mozart, was a prolific and influential composer of the Classical era.  - A concerto (from the , plural "concerti" or, often, the anglicised form "concertos") is a musical composition, whose characteristics have changed over time. In the 17th century, "sacred works for voices and orchestra were typically called concertos." J. S. Bach "was thus reflecting a long-standing tradition when he used the title 'concerto' for many of the works that we know as cantatas.". But in recent centuries, up to the present, a concerto is a piece usually composed in three parts or movements, in which (usually) one solo instrument (for instance, a piano, violin, cello or flute) is accompanied by an orchestra or concert band.  - The masque was a form of festive courtly entertainment that flourished in 16th- and early 17th-century Europe, though it was developed earlier in Italy, in forms including the intermedio (a public version of the masque was the pageant). A masque involved music and dancing, singing and acting, within an elaborate stage design, in which the architectural framing and costumes might be designed by a renowned architect, to present a deferential allegory flattering to the patron. Professional actors and musicians were hired for the speaking and singing parts. Often the masquers, who did not speak or sing, were courtiers: the English queen Anne of Denmark frequently danced with her ladies in masques between 1603 and 1611, and Henry VIII and Charles I of England performed in the masques at their courts. In the tradition of masque, Louis XIV of France danced in ballets at Versailles with music by Jean-Baptiste Lully.  - A violin concerto is a concerto for solo violin (occasionally, two or more violins) and instrumental ensemble, customarily orchestra. Such works have been written since the Baroque period, when the solo concerto form was first developed, up through the present day. Many major composers have contributed to the violin concerto repertoire, with the best known works including those by Bach, Bartók, Beethoven, Brahms, Bruch, Mendelssohn, Mozart, Paganini, Prokofiev, Shostakovich, Sibelius, Tchaikovsky, and Vivaldi. Traditionally a three-movement work, the violin concerto has been structured in four movements by a number of modern composers, including Dmitri Shostakovich, Igor Stravinsky, and Alban Berg (in the latter, the first two and last two movements are connected, with the only break coming between the second and third). In some violin concertos, especially from the Baroque and modern eras, the violin (or group of violins) is accompanied by a chamber ensemble rather than an orchestrafor instance, Vivaldi's "L'estro armonico", originally scored for four violins, two violas, cello, and continuo, and Allan Pettersson's first concerto, for violin and string quartet.  - Artaserse is the name of a number of Italian operas , all based on a text by Metastasio . Artaserse is the Italian form of the name of the king Artaxerxes I of Persia . There are over 90 known settings of Metastasio 's text . The libretto was originally written for , and first set to music by Leonardo Vinci in 1730 for Rome ( Artaserse ) . It was subsequently set by Johann Adolph Hasse in 1730 for Venice and in 1760 for Naples , by Gluck in 1741 for Milan , by Chiarini in 1741 for Verona , by Graun in 1743 for Stuttgart , by Terradellas in 1744 for Venice , by Galuppi in 1749 for Vienna , by Johann Christian Bach in 1760 for London , by Josef Mysliveek in 1774 for Naples ( Artaserse ) , by Marcos Portugal in 1806 for Lisbon and many other times . The text was often altered . Thomas Arne 's 1762 Artaxerxes is set to an English libretto that is based on Metastasio 's . Mozart 's aria for soprano and orchestra `` Conservati fedele '' ( K. 23 , 1765 ) is set to the parting verses of Mandane ( Artaserse 's sister ) at the end of the first scene . The opera was famously performed in 1734 as a pastiche , featuring songs by various composers such as Johann Adolf Hasse , Attilio Ariosti , Nicola Porpora and Riccardo Broschi . It was in this that Broschi 's brother , Farinelli , sang one of his best - known arias , `` Son qual nave ch'agitata '' .  - A Requiem or Requiem Mass, also known as Mass for the dead (Latin: "Missa pro defunctis") or Mass of the dead (Latin: "Missa defunctorum"), is a Mass in the Catholic Church offered for the repose of the soul or souls of one or more deceased persons, using a particular form of the Roman Missal. It is frequently, but not necessarily, celebrated in the context of a funeral.  - Pietro Antonio Domenico Trapassi, better known by his pseudonym of Pietro Metastasio (3 January 1698  12 April 1782), was an Italian poet and librettist, considered the most important writer of "opera seria" libretti.    After reading the paragraphs above, we are interested in knowing the entity with which 'artaserse' exhibits the relationship of 'author'. Find the answer from the choices below.  Choices: - alban berg  - henry viii  - one  - pietro metastasio  - wolfgang amadeus mozart
Answer:
pietro metastasio