Question: The Estonian Philharmonic Chamber Choir performs works by which Estonian classical and religious composer?

full_context: Document 1: Dmitri Tymoczko: Dmitri Tymoczko is a composer and music theorist. His music, which draws on rock, jazz, and romanticism, has been performed by ensembles such as the Amernet String Quartet, the Brentano Quartet, Janus, Newspeak, the San Francisco Contemporary Players, the Pacifica Quartet, and the pianist Ursula Oppens. As a theorist, he has published more than two dozen articles dealing with topics related to contemporary tonality, including scales, voice leading, and functional harmonic norms. His article "The Geometry of Musical Chords," was the first music-theory article ever published by the journal "Science".
Document 2: Estonian National Symphony Orchestra: The Estonian National Symphony Orchestra (Estonian: Eesti Riiklik Sümfooniaorkester ) is the leading orchestra in Estonia and is based in the capital Tallinn. Founded as the Estonian Radio Symphony Orchestra, it gave its first concert in a broadcast by Tallinn Radio on December 18, 1926. During the Soviet regime, in the 1950s, the orchestra became the first in the Soviet Union to perform the work of modernist composers such as Igor Stravinsky, Arnold Schoenberg, Anton Webern, and Carl Orff, previously suppressed by Stalin's regime. Following the collapse of Soviet rule, the lifting of emigration restrictions, and the rebirth of independent Estonia in 1991, almost half of the Orchestra's players migrated to the West in search of better career opportunities. This exodus of talent plunged the Orchestra's fortunes into a depression. After the nadir of 1993, the Orchestra enjoyed a strong recovery under the leadership of conductor Arvo Volmer.
Document 3: Eric Whitacre: Eric Edward Whitacre (born January2, 1970) is a Grammy-winning American composer, conductor, and speaker, known for his choral, orchestral and wind ensemble music. He is also known for his "Virtual Choir" projects, bringing individual voices from around the globe together into an online choir. In March2016, he was appointed as Los Angeles Master Chorale's first artist-in-residence at the Walt Disney Concert Hall.
Document 4: Arnold Schoenberg Choir: The Arnold Schoenberg Choir (German: "Arnold Schoenberg Chor" ) is a Viennese/Austrian choir which was founded 1972 by Erwin Ortner, who is still its artistic director. The choir has a high reputation both among conductors and among critics and the musical scene in general. All members of the choir have broad experience and expertise in vocal music; most of them have graduated from or are currently studying at the Vienna University of Music and Performing Arts. The choir is named after Viennese composer Arnold Schoenberg.
Document 5: Lithuanian Chamber Orchestra: The Lithuanian Chamber Orchestra (LCO) is a chamber orchestra based in Vilnius, Lithuania. It was established by Saulius Sondeckis in 1960, giving their first performance on April 30, 1960. Along with the Lithuanian National Philharmonic and the Vilnius String Quartet, the LCO is a resident group of the National Philharmonic Hall, though the Lithuanian State Symphony, the Kaunas State Choir, and the LCO are housed in the Lithuanian National Opera and Ballet Theatre. The orchestra generally performs works of Lithuanian composers, and premiered works by the likes of Alfred Schnittke, Arvo Pärt and Peters Vasks. It is also said to have a "special affinity for the works of Bach and Mozart." Until 2004, the LCO was part of the Lithuanian National Philharmonic Society, but in that year, it gained independent status. Saulius Sondeckis served as Artistic Director and Chief Conductor from its inception in 1960 until 2004 and violinist Sergei Krylov was appointed in 2008. Yehudi Menuhin has conducted its choral-orchestral works.
Document 6: Aeolian Singers: The Aeolian Singers, president Peter Skellern, musical director Stephen Jones, rehearsal pianist Anna Le Hair, was established in 1963. With about 80 members, it is Hemel Hempstead's largest mixed-voice chorus. While based in Hertfordshire, the singers also perform in major London concert halls and in other parts of Europe. In recent years they have performed in Ghent, Paris and Provence and visited Mannheim in October 2006, where they performed in two concerts together with the Konzertchor der Stadt Mannheim. They have a very wide repertoire ranging from Renaissance to contemporary music, and have given several first performances. They also have a tradition of community and youth involvement.
Document 7: Chamber Choir Head Ööd, Vend: Chamber Choir Head Ööd, Vend is an Estonian chamber choir. The chief conductor of the choir is the Estonian composer Pärt Uusberg.
Document 8: Terry Riley: Terrence Mitchell "Terry" Riley ( ; born June 24, 1935) is an American composer and performing musician associated with the minimalist school of Western classical music, of which he was a pioneer. His work is deeply influenced by both jazz and Indian classical music.
Document 9: Te Deum (Pärt): Te Deum is a setting of the Latin Te Deum text, also known as the Ambrosian Hymn attributed to Saints Ambrose, Augustine, and Hilary, by Estonian-born composer Arvo Pärt, commissioned by the Westdeutscher Rundfunk in Cologne, Germany, in 1984. Dedicated to the late Alfred Schlee of Universal Edition, the WDR Broadcast Choir premiered the Te Deum under the direction of conductor Dennis Russell Davies on January 19, 1985. The Te Deum plays an important role in the services of many Christian denominations, including the Paraklesis (Moleben) of Thanksgiving in the Eastern Orthodox Church. Because of the unusual instrumentation Pärt employs, his Te Deum is not suited for use within the Orthodox Church. It was recorded on the ECM New Series label in 1993 by the Estonian Philharmonic Chamber Choir and Tallinn Chamber Orchestra under the direction of Tõnu Kaljuste. The piece is approximately thirty minutes long.
Document 10: Arvo Pärt: Arvo Pärt (] ; born 11 September 1935) is an Estonian composer of classical and religious music. Since the late 1970s, Pärt has worked in a minimalist style that employs his self-invented compositional technique, tintinnabuli. Pärt's music is in part inspired by Gregorian chant. His most performed works include "Fratres" (1977), "Spiegel im Spiegel" (1978), and "Für Alina" (1976). Pärt has been the most performed living composer in the world for five consecutive years.
Document 11: La Monte Young: La Monte Thornton Young (born October 14, 1935) is an American avant-garde composer, musician, and artist generally recognized as the first minimalist composer. His works are cited as notable examples of post-war experimental and contemporary music, and were tied to New York's downtown music and Fluxus art scenes.
Document 12: Spem in alium: Spem in alium (Latin for "Hope in any other") is a 40-part Renaissance motet by Thomas Tallis, composed in c. 1570 for eight choirs of five voices each, considered by some critics to be the greatest piece of English early music. Along with Tallis's "Lamentations", H. B. Collins described it in 1929 as Tallis's "crowning achievement".
Document 13: University of Utah Singers: The University of Utah Singers (UU Singers) was the premier choral ensemble at the University of Utah until 2010. The ensemble was organized in 2003 by Dr. Brady R. Allred. Composed of approximately 45 voices, the ensemble performed repertoire from a wide range of musical styles and eras. In their short history, UU Singers achieved both national and international acclaim, winning the Grand Prize at the 2005 Florilège Vocal de Tours International Choir Competition in Tours, France, winning the European Grand Prix Choral Competition in Tolosa, Spain in 2006, winning first prize at the 11th International Chamber Choir Competition Marktoberdorf in 2009, participating in the 19th Festival “Choralies de Vaison-la-Romaine” in France and the 37th Abu Gosh international vocal music festival near Jerusalem. The UU Singers performed in concerts throughout England, France, Spain, the Netherlands, Italy, the Czech Republic, Hungary, Croatia, Slovenia, Austria, Germany and Israel on five international concert tours, and has appeared on French national television at the Nancy International Choir Festival.
Document 14: Steve Reich and Musicians: Steve Reich and Musicians, sometimes credited as the Steve Reich Ensemble, is a musical ensemble founded and led by the American composer Steve Reich (born 1936) to perform his compositions. This ensemble has premiered many of Reich's works and has performed his works more than any other. The ensemble received a Grammy Award in 1999.
Document 15: Estonian Philharmonic Chamber Choir: The Estonian Philharmonic Chamber Choir (EPCC) is a professional choir based in Estonia. It was founded in 1981 by Tõnu Kaljuste, who was its conductor for twenty years. In 2001, Paul Hillier followed Kaljuste's tenure, becoming the EPCC's principal conductor and artistic director until September 2008, when Daniel Reuss took over the task. The repertoire of the EPCC ranges from Gregorian Chant to modern works, particularly those of the Estonian composers Arvo Pärt and Veljo Tormis. The group has been nominated for numerous Grammy Awards, and has won the Grammy Award for Best Choral Performance twice: in 2007 with Arvo Pärt's "Da pacem" and in 2014 with Pärt's "Adam's Lament", the latter was shared with Tui Hirv & Rainer Vilu, Sinfonietta Riga & Tallinn Chamber Orchestra; Latvian Radio Choir & Vox Clamantis.
ground_truth: Arvo Pärt