Question: What is the origin of the conductor of Where are You, my Brothers?

Context paragraphs:
Emmanuel Fratianni: Emmanuel Fratianni is a conductor, composer and jazz pianist active in the international concert world as well as the music of film, television, video games.  Born in the city of Montreux, Switzerland of Italian origin, Emmanuel retains right to work status in both the United States and European Union.  Beginning in 2010 he was awarded the position of principal conductor of the internationally acclaimed concert series Video Games Live, and is also known for his compositions on the multi-award-winning score of the video game Advent Rising.

Marta Canales: Marta Canales Pizarro (17 July 1893 – 6 December 1986) was a Chilean violinist, choral conductor and composer.  She was born in Santiago and made her debut as a violinist at age eleven playing Mendelssohn's "Concerto".  With her brothers, she founded a chamber ensemble that was active from 1916-1920.  After her performing career ended, she studied composition with Luis Esteban Giard, and then worked as a composer and choral conductor.  She died in Santiago, aged 93.

Wilhelm Cramer: Wilhelm Cramer (2 June 1746, Mannheim – 5 October 1799, London) was a famous London violinist and musical conductor of German origin.  He was one of a numerous family who were identified with the progress of music during the 18th and 19th centuries.  Wilhelm Cramer is the father of the famous Johann Baptist Cramer (24 February 1771 – 16 April 1858) (English musician of German origin).

Guillaume de Van: Guillaume de Van (2 July 1906 in Memphis – 2 July 1949 in Amalfi) real name William Carrolle Devan, was a French musicologist and choral conductor of American origin.  A student at Princeton University, he then traveled to Rome to train in Gregorian chant.  In the early 1930s, he became choir conductor, conducting the Armenian choir in Paris.  In 1935, in collaboration with abott Ducaud-Bourget, he founded the vocal ensemble "Les Paraphonistes de Saint-Jean des Matines".  With this ensemble he interpreted and recorded for the first time several secular and religious vocal works of the Middle Ages.  Among these works, he recorded the world premiere of "Messe de Nostre Dame" by Guillaume de Machaut in 1936 of which he made one of the first complete transcriptions published by the Corpus mensurabilis musicae in 1950.  In 1942 he was appointed by the Vichy regime curator of the newly created , until 1944.  In this capacity he collaborated with the Nazi musicologists of the "".  After the Liberation of France, he was suspended from his duties on 24 August 1944.

Jan Latham-Koenig: Jan Latham-Koenig (born in 1953) is a British conductor.  He was born in England, coming from French, Danish, Polish as well as Mauritian origin.  He attended Highgate School and then studied at the Royal College of Music in London before he founded the Koenig Ensemble in 1976 and began his career as a concert conductor with the BBC, in 1981 and winning the coveted Gulbenkian Fellowship.  He made a remarkable debut with "Macbeth" at the Vienna State Opera in 1988 and was appointed its permanent guest conductor in 1991.

Where Are You My Brothers?: Where are You, my Brothers?  is a 2003 album of Russian-language songs from World War II recorded by baritone Dmitry Hvorostovsky and conductor Constantine Orbelian for Delos Productions.  The album was released in Russia as "Songs of the War Years" (Песни военных лет).  It was based on a concert at the Kremlin Palace in Moscow.  A video of the concert and 13 of the songs was released on the American VAI label.  The repertoire of the concert is the very core of the Russian war song genre and the sound and video releases were accompanied by booklet essays and sung texts and translations.

George Greeley: George Greeley (born Georgio Guariglia; July 23, 1917 – May 26, 2007) was an Italian-American pianist, conductor, composer, arranger, recording artist and record producer who is known for his extensive work across the spectrum of the entertainment industry.  Starting as an arranger and pianist with several notable big bands in the 1940s, he segued into the Hollywood radio scene, working on several nationally-broadcast variety programs.  After conducting an Army Air Force Band during World War II, he was hired by Columbia Pictures as a staff pianist and orchestrator.  He worked as pianist on several hundred motion pictures, worked with many famous composers orchestrating their soundtrack compositions, and created original compositions of his own in several dozen movies.  It was Greeley's hands that performed the piano parts that Tyrone Power mimed in "The Eddy Duchin Story."  Concurrent with his work at Columbia Pictures, George Greeley also worked at Capitol Records as music director, pianist, and conductor for many artists such as Gordon MacRae, Jane Powell, Jo Stafford, Frankie Laine, and Doris Day.  He was hired in the late 1950s by the newly established Warner Brothers Records.  George Greeley arranged, orchestrated and performed as primary artist for a series of hit recordings entitled "Popular Piano Concertos."  As music tastes changed in the late 1960s, Greeley had already moved into television, composing themes and music for popular TV series like "My Favorite Martian," "The Ghost and Mrs. Muir," "Nanny and the Professor," and "Small Wonder."  He performed as featured piano soloist and as guest conductor in concert appearances around the world.  George Greeley died from emphysema at age 89 in Los Angeles, California.

Tadros (duo): Tadros also known as Les Frères Tadros / the Tadros Brothers / Les jumeaux Tadros / Duo Tadros are a Montreal, Quebec-based Canadian musical duo consisting of singer-songwriters (identical twin brothers) Daniel "Dan" Tadros and Eric Tadros (born in Montreal in 1976).  The Tadros brothers, of mixed Egyptian and Italian origin, are multilingual performers with songs composed in both French and English, and also singing in Spanish and Italian.  They are the only artists signed to "Due Belier Disques" record label, which is the label they own.

Constantine Orbelian: Constantine Garrievich Orbelian, Jr. (Armenian: Կոնստանտին Օրբելյան , Russian: Константин Гарриевич Орбелян , born San Francisco, 27 August 1956) is an American conductor and pianist of Armenian and Russian descent.  He is named after his paternal uncle Konstantin Orbelyan, a major Armenian composer.

Duilio Dobrin: Duilio Dobrin (born in Buenos Aires), is an American conductor and pianist of Argentine origin.  As conductor for the Interlochen Academy, Dobrin quickly earned high praise for his stellar performances, ranked as among the very best in its history.  Not surprisingly, his management announced on 1 May 2013, <http://rilearts.com> that he had won the 2013 Downbeat Award for best classical performance at the helm of the IAA Orchestra.

Supporting paragraphs: Where Are You My Brothers? Constantine Orbelian
Answer: Armenian and Russian descent.