paragraph_text: Joseph Linke (also spelled Joseph Lincke, Josef Linke; 8 June 1783 – 26 March 1837) was a cellist and composer who had a distinguished career in Vienna, as a soloist and as a member of the Schuppanzigh Quartet. He took part in the first performances of string quartets and other chamber works of Ludwig van Beethoven.

paragraph_text: Timothy Eddy is an American cellist from Exeter, New Hampshire who is a founder of Orion String Quartet and a resident of the Mannes College The New School for Music. Since 1978 he is a member of Bach Aria Group and is a former member of Galimir String Quartet of New York Philomusica Chamber Ensemble. He is also a winner of numerous competitions such as the 1975 Cassado International Violoncello Competition, Dealy Competition and Denver Symphony Guild.

paragraph_text: Wolfgang Amadeus Mozart's String Quartet No. 15 in D minor, K. 421/417b is the second of the Quartets dedicated to Haydn and the only one of the set in a minor key. Though undated in the autograph, it is believed to have been completed in 1783, while his wife Constanze Mozart was in labour with her first child Raimund. Constanze stated that the rising string figures in the second movement corresponded to her cries from the other room.

paragraph_text: Franz Xaver Pecháček (4 July 1793 in Vienna – 15 September 1840 in Karlsruhe) was an Austrian-German violin virtuoso and composer of Bohemian origin. Besides polonaises, variations, Rondos and potpourris for violin and orchestra, he composed two string quartets and the "Adagio et Polonaise" for clarinet and orchestra.

paragraph_text: Helen Merrill with Strings is the second album by Helen Merrill, featuring the singer fronting a quartet augmented by a string section arranged by Richard Hayman, recorded in 1955 and released on the EmArcy label.

paragraph_text: Franz Joseph Haydn (; German: [ˈfʁants ˈjoːzɛf ˈhaɪdn̩] (listen); 31 March 1732 – 31 May 1809) was an Austrian composer of the Classical period. He was instrumental in the development of chamber music such as the piano trio. His contributions to musical form have earned him the epithets "Father of the Symphony" and "Father of the String Quartet".Haydn spent much of his career as a court musician for the wealthy Esterházy family at their remote estate. Until the later part of his life, this isolated him from other composers and trends in music so that he was, as he put it, "forced to become original". Yet his music circulated widely, and for much of his career he was the most celebrated composer in Europe.

paragraph_text: Vojtěch Matyáš Jírovec (Adalbert Gyrowetz) (20 February 1763 – 19 March 1850) was a Bohemian composer. He mainly wrote instrumental works, with a great production of string quartets and symphonies; his operas and singspiele numbered more than 30, including "Semiramide" (1791), "Der Augenarzt" (1811), and "Robert, oder Die Prüfung" (1815).

paragraph_text: Edwin Grasse (13 August 1884 – 8 April 1954) was an American violinist, organist and composer. Among his compositions were orchestral works, including a symphony and a violin concerto, and much chamber music, including a string quartet.

paragraph_text: Kevin Volans: Hunting:Gathering is a studio album by the Kronos Quartet, containing works by South African composer Kevin Volans composed especially for the quartet.

paragraph_text: To fill this gap in the literature, mandolin orchestras have traditionally played many arrangements of music written for regular orchestras or other ensembles. Some players have sought out contemporary composers to solicit new works. Traditional mandolin orchestras remain especially popular in Japan and Germany, but also exist throughout the United States, Europe and the rest of the world. They perform works composed for mandolin family instruments, or re-orchestrations of traditional pieces. The structure of a contemporary traditional mandolin orchestra consists of: first and second mandolins, mandolas (either octave mandolas, tuned an octave below the mandolin, or tenor mandolas, tuned like the viola), mandocellos (tuned like the cello), and bass instruments (conventional string bass or, rarely, mandobasses). Smaller ensembles, such as quartets composed of two mandolins, mandola, and mandocello, may also be found.

paragraph_text: "Shostakovich" (1969–1981) is a series of thirty oil paintings by Aubrey Williams. Each painting in the series is based on a particular symphony or quartet by the Russian composer Dmitri Shostakovich, whom Williams regarded as "the greatest composer of [his] time".

paragraph_text: Johannes Brahms's Clarinet Quintet in B minor, Op. 115 was written in 1891 for the clarinettist Richard Mühlfeld. It is scored for a clarinet in A with a string quartet. It has a duration of approximately thirty-five minutes.

paragraph_text: Giuseppe Verdi's String Quartet in E minor was written in the spring of 1873 during a production of "Aida" in Naples. It is the only surviving chamber music work in Verdi's catalogue.

paragraph_text: The album is a reissue in 12" format of the 10" LP "Miles Davis Quartet" (PRLP 161), with "I'll Remember April" added. Tracks 4,6, 7, and 8 come from Prestige PREP 1326, The Miles Davis Quartet, recorded 19 May 1953. It features a quartet with John Lewis on piano —replaced on "Smooch" by its co-composer Charles Mingus— Percy Heath, the bassist throughout the album, and Max Roach on drums. Tracks 2, 3, and 5, from March 15, 1954, with Horace Silver on piano and Art Blakey on drums, were first released on PREP 1360, titled Miles Davis Quartet. The first track on the album is from the 3 April 1954 session which resulted in half of the album "Walkin'" (and was originally included on the 10" LP "Miles Davis Quintet" (PRLP 185)).

paragraph_text: MusiConnects is a non-profit arts education organization, founded by the Boston Public Quartet and based in Boston, Massachusetts. Their mission is to model and teach self-expression, peer leadership and community development through the transformative power of chamber music. MusiConnects is actively working in partnership with Boston public schools to provide free music education to students – in the hopes of also creating a thriving community to unite youth, families, and musicians. The Boston Public quartet is a professional, performing string quartet that regularly gives concerts across the Boston area, in traditional and neighborhood venues alike.

paragraph_text: The String Quartet No. 5 in A major, Op. 18, No. 5, was written between 1798 and 1800 by Ludwig van Beethoven and published in 1801, and dedicated to Joseph Franz von Lobkowitz. Beethoven modeled this quartet directly on Mozart's quartet in the same key (K. 464).

paragraph_text: Olivier Greif (3 January 1950, Paris – 13 May 2000, Paris) was a French composer of Polish-Jewish parentage. His father was an Auschwitz survivor, a fact which affected Greif deeply and led him to compose a number of Holocaust-themed works, notably "Todesfuge", and "Lettres de Westerbork", a song cycle which uses letters written by Etty Hillesum . (The composer wanted to use Paul Celan's poem "Todesfuge" in his third string quartet, but found it difficult to set, so kept the title but used Dylan Thomas's "Elegy" instead.)

paragraph_text: Wolfgang Amadeus Mozart was born on 27January 1756 to Leopold Mozart (1719–1787) and Anna Maria, née Pertl (1720–1778), at 9 Getreidegasse in Salzburg. This was the capital of the Archbishopric of Salzburg, an ecclesiastic principality in what is now Austria, then part of the Holy Roman Empire. He was the youngest of seven children, five of whom died in infancy. His elder sister was Maria Anna Mozart (1751–1829), nicknamed "Nannerl". Mozart was baptised the day after his birth, at St. Rupert's Cathedral in Salzburg. The baptismal record gives his name in Latinized form, as "Joannes Chrysostomus Wolfgangus Theophilus Mozart". He generally called himself "Wolfgang Amadè Mozart" as an adult, but his name had many variants.

paragraph_text: Schenk was born in Wiener Neustadt. While still a boy he composed songs, dances and symphonies, and became a proficient violinist and keyboard and wind instrument player. In 1773 he went to Vienna to study with Georg Christoph Wagenseil. Beginning in 1777 he was composing religious works for Saint Stephen's Cathedral. In the 1780s he became a prolific composer of incidental music for plays and singspiele. His best-known singspiel is "Der Dorfbarbier", which premiered in 1796. His other compositions include numerous cantatas, ten symphonies, several concertos (including a well-known one for harp), and five string quartets. Mozart was a good friend of Schenk and Beethoven studied under him in 1793.

paragraph_text: Alois Reiser (April 6, 1887 - April 4, 1977 in Los Angeles) was an American composer of Czechoslovakian origin. Born in Prague, he came to the United States in 1905. He composed a number of works for orchestra, including two tone poems and two cello concertos; he also wrote chamber music, including string quartets, and the opera "Gobi". He also composed music for films.

Question: Who was the father of the composer of String Quartet No. 15?
Answer: Leopold Mozart