Question: What group did the composer of Pictures at an Exhibition belong to?

Context paragraphs:
Lino Mannocci: He was born in Viareggio, Italy, and moved to London in 1968.  Between 1971 and 1976 he studied at Camberwell College of Arts and as a postgraduate at the Slade School of Fine Art in London.  Since 1976 Mannocci has returned annually to a little Italian hamlet in the hills between Lucca and Viareggio.  In the early 1980s he was a co-founder of the movement La Metacosa and was closely involved in all the group's exhibitions and activities.  His first Museum exhibition was in 1984 at the 'Hack-Museum' in Ludwigshafen, Germany.  In 1988 Yale University Press published Mannocci's Catalogue raisonne of the graphic works of Claude Lorrain.  During the 1990s he exhibited his work in San Francisco, New York, London, Milan, Florence and Bergamo.  In 2004 his recent paintings were included in the exhibition curated by Philippe Daverio at the Spazio Oberdan in Milan called "Fenomenologia della Metacosa – 7 artisti nel 1979 a Milano e 25 anni dopo", and in 2005 he had a one-person show entitled "Let there be smoke" at the Museo H. Christian Andersen in Rome.  In 2006 Mannocci exhibited in Delhi and Mumbai in India, and in 2007 he curated an exhibition at the Galleria Ceribelli in Bergamo called "Gli amici pittori di Londra", a homage to painting and friendship.  On the occasion of his exhibition in 2010 of monotypes at the Fitzwilliam Museum in Cambridge, "Clouds and Myths", Mannocci curated an exhibition on the theme of the Annunciation, "The Angel and the Virgin: A Brief History of the Annunciation".  The Cartiere Vannucci in Milan exhibited his paintings in 2012.  In October, he exhibited his work in New York at Jill Newhouse Gallery.  He had an exhibition at Galleria San Fedele in Milan, "E l’angelo partì da lei", in 2014.  In the following year, 2015, he presented a solo exhibition of recent works at the Galleria Nazionale d’Arte Moderna di Palazzo Pitti in Florence.  In May, an invitation to commemorate the 800th centenary of the Magna Carta at Temple Church, London, resulted in a show of monotypes on parchment.  In June, he exhibited a group of treated postcards at London’s Estorick Collection, "Shaping the Image" which concerned the main protagonists of the Futurists movement.  In October, he had a one-person exhibition "Stanze", at Galleria Ceribelli in Bergamo, Italy.

Hong Lei (artist): Hong Lei (; born 1960) is one of the leading artists in the era of China's New Photography movement in the 1990s.  He was born in Changzhou, Jiangsu in 1960 and graduated from Nanjing University of the Arts in 1987.  In 1992, he went to the China Central Academy of Fine Arts to pursue advanced studies in printmaking.  Inspired by his early art experience in Yuan Ming Yuan and learning from traditional Chinese paintings, he returned to Changzhou and soon started to use photography as a way of art representation since 1996.  His renowned works include "Autumn in the Forbidden City" (1997), "Chinese Landscape" (1998), "After Liang Kai's (Song Dynasty) Masterpiece Sakyamuni Coming Out of Retirement" (1998), "I Dreamt that I was Hung Upside Down to Listen to Huizong Play the Zither with Chairman Mao" (2004) and "Nothing to Hide" (2008), among others.  Apart from his success in digital photos, he started to photograph black and white Shan shui landscapes as an ongoing experimental project since 2000 to rethink Chinese traditional aesthetics.  In recent years, he has also explored the various boundaries and possibilities of photography by painting his own photos on silk, as well as video & installation works.  His selected solo and group exhibitions include "Recontres d' Arles: Arles Phototography Festival" (Arles, France, 2003), "Alors, La Chine? , Chinese Contemporary Art Exhibition" (Pompidou Centre, Paris, 2003), "Seven Worthies" (solo exhibition, Beijing, 2007), "Seasons" (solo exhibition, Beijing, New York, 2008), 2011 Chengdu Biennale, "Mi Lou" (solo exhibition, Beijing, 2012) and "Perfume This is Not" (solo exhibition, Shanghai, 2012).  Now he lives and works in Changzhou and Shanghai.

Pictures at an Exhibition: Pictures at an Exhibition (Russian: Картинки с выставки – Воспоминание о Викторе Гартмане , "Kartínki s výstavki – Vospominániye o Víktore Gártmane" , "Pictures from an Exhibition – A Remembrance of Viktor Hartmann"; French: "Tableaux d'une exposition" ) is a suite of ten pieces (plus a recurring, varied Promenade) composed for the piano by Russian composer Modest Mussorgsky in 1874.

The Pictures Generation: The Pictures Generation was both the name of an exhibition at The Metropolitan Museum of Art in New York (April 29 – August 2, 2009); and a means to an end in being the first formal labeling of a group of artists exhibited around their appropriation of images from the consumer and media saturated age in which they grew to maturity, both artistically and in years.  The term originated in response to the 1977 exhibition "Pictures," curated by Douglas Crimp, which took place in the Fall of 1977 at Artists Space in New York City。 The artists exhibited in the aforementioned seminal exhibition included；Troy Brauntuch, Jack Goldstein, Sherrie Levine, Robert Longo and Philip Smith.

John Serry: John Serry (born 1954, John Serry Jr., in New York City) is a jazz pianist and composer, as well as a composer of contemporary classical music works that feature percussion, on which he also doubles.  His debut solo album was 'Exhibition' (1979 Chrysalis Records), for which he received a Grammy Nomination (Best Instrumental Arrangement) for his composition, 'Sabotage'.  The players included Carlos Vega drums, Jimmy Johnson bass, Gordon Johnson bass, Bob Sheppard saxophone/woodwinds, Gordon Gottlieb percussion and Barry Finnerty guitar.  His second album, 'Jazziz' (1980 Chrysalis Records) received four stars in Downbeat Magazine and feature review of the month in Keyboard magazine; it was also the inspiration for the naming, in 1983, of JAZZIZ magazine by publisher Michael Fagien.  The personnel was the same as that of 'Exhibition', except with Mike Sembello on guitar.  Serry's 3rd album was 'Enchantress' (1996 Telarc) about which Downbeat Magazine wrote: "He has a strong sense of melody, his touch is confident, his ideas are sensible and his playing is beautifully controlled."  Of 'Enchantress', Jim Aikin wrote in Keyboard magazine: "What a pleasure to find that he is back, still turning out charts that turn heads by turning corners."  and Hilary Grey wrote in JazzTimes: "Serry's fleet fingered runs on songs like the jaunty, catchy 'DYT it' are both technically impressive and subtle."  'Enchantress' was recorded after Serry had been awarded the Grand Prize in the 1995 JAZZIZ magazine 'Keyboards on Fire' pianist/composer competition, judged by Dave Brubeck and Bob James (grand piano awarded by Steinway).  The musicians were John Riley drums, Gerry Niewood and Ralph Bowen sax and Tom Brigandi bass.  All of the compositions (and arrangements) for all three albums were by Serry and he was Producer for 'Exhibition' and 'Jazziz'.

List of terms for ethnic exogroups: An ethnic exogroup is a group of people which does not belong to a particular ethnic group.  Many cultures have terms referring to all outsiders, but in practice this often becomes narrowed to the largest outsider group.  In particular, exogroup terms used by minorities in a particular country often become specific to the majority in that country rather than applying to other minorities as well.  Exogroup terms are sometimes considered to be derogatory, depending on the word and the context and manner in which it is used.  They may be distinguished from ethnic or religious slurs in that they do not necessarily designate a specific group, and instead target all who do not belong to a specific group.

Modest Mussorgsky: Modest Petrovich Mussorgsky (Russian: Моде́ст Петро́вич Му́соргский ; ] ; 21 March [O.S. 9 March] 1839 – 28 March [O.S. 16 March] 1881 ) was a Russian composer, one of the group known as "The Five".  He was an innovator of Russian music in the romantic period.  He strove to achieve a uniquely Russian musical identity, often in deliberate defiance of the established conventions of Western music.

South Bergish: South Bergish (German: "Südbergische Dialekte ") or Upper Bergish (German: "Oberbergische Dialekte ") is a group of German dialects of the Bergisches Land Region East of the Rhine and approximately south of the Wupper and north of the Sieg.  These dialects are part of the Ripuarian group and thus are also called East Ripuarian.  Ripuarian dialects are also spoken west of the Rhine up to the German border, and in some small areas next to the respective borders in Belgium and in the Netherlands.  Ripuarian Bergish dialects belong to the Middle German group, and thus are varieties of High German, where they belong to the northmost ones.  In the North, they border to the East Bergish and the West Bergish aka Low Bergish language groups, which are part of the Low Franconian group like Dutch.

Star Art Exhibition: The Star Art Exhibition took place on September 27, 1979 when a group of avant-garde and self-taught (not trained in the Academy) Chinese artists staged an unpermitted exhibition on the railings of the China Art Gallery after being denied an official exhibition space.  The group is called Star Art Group(Xingxing) which used formerly banned western style, from Post-impressionism to Abstract Expressionism to challenge both aesthetic convention and political authority: their exhibition was closed by the police and they post a notice on Democracy Walls.  In November, Beihai Park Beijing, the group held their first formal exhibition: Star Art Exhibition (Xingxing huazhan), which includes 163 works by 23 nonprofessional artists.  Star Art exhibition was a milestone in China's contemporary art.

Ruth Vollmer: Ruth Vollmer (1903 - 1982 New York City), was a German artist born in Munich.  She was born in 1903 and named Ruth Landshoff.  Her father, Ludwig Landshoff, was a musicologist and conductor and her mother, Phillipine Landshoff, was an opera singer.  Their family was Jewish.  At age 19 she began to work as an artist and took the advice of her father to draw every day.  She also had many connections to the teachers and students at the Bauhaus.  In 1930 she married a pediatrician named Hermann Vollmer, whom she met in Berlin.  Ruth and Hermann move from Germany to New York in 1935.  Ruth begins work designing window displays for Bonwit Teller, Tiffany's, Lord & Taylor, and other department stores.  Her displays experimented with wire, steel, and copper mesh to create figural forms.  In 1943, Vollmer becomes a U.S. citizen.  In 1944 she receives a commission from the Museum of Modern Art for its fifteenth anniversary exhibition, "Art in Progress."  Vollumer continues to work with wire mesh and shows her work "Composition in Space" at the Museum of Modern Art's 1948 exhibition "Elements of Stage Design."  In 1950, she was commissioned to create a mural for the lobby of 575 Madison, where Vollmer created a large wall relief that used wire rods and wire mesh to play with light, texture, and transparency.  Vollumer visits Giacometti for a second time during the summer of 1951.  During the 1950s she begins to works with clay as well.  Additionally, in 1954 she begins to teach at the Children's Art Center at the Fieldston School in Riverdale and continued to teach until the mid-sixties.  In 1960, Vollmer participates in the NYU discussion series "Artists on Art" with her friend Robert Motherwell.  1960 is an important year because she also has her first one-person exhibition at Betty Parson's Section Eleven gallery space.  Throughout the 1960s Vollmer works with bronze and as well as showing at Betty Parson's gallery several times.  In 1963, she joins the group American Abstract Artists (AAA) and includes her work in their exhibitions from 1963 on.  By 1970 Vollmer's art is working with complex geometrical forms and mathematical concepts, particularly spirals and platonic solids.  Sol LeWitt wrote a short essay on Vollmer's work for "Studio International" titled "Ruth Vollmer: Mathematical Forms."  Vollmer protests the cancellation of the Hans Haacke at The Solomon R. Guggenheim exhibition by writing a letter to the director, Thomas Messer, in 1971.  In 1976, she had a large one-person exhibition at the Neuberger Museum of Art.  In 1982, Ruth Vollmer dies after a long battle with Alzheimer's.  A majority of her large personal art collection of over one hundred sculptures, paintings, and drawings is donated to MoMA.  Her art collection included works by Carl Andre, Mel Bochner, Eva Hesse, Sol LeWitt, Ad Reinhardt, Frank Stella, Agnes Martin, and Chryssa.

Supporting paragraphs: Pictures at an Exhibition Modest Mussorgsky
Answer: The Five