Pastorale (Russian: Пастораль ) is a song without words written by Igor Stravinsky in 1907.
 Stravinsky composed the piece at his family's estate in Ustilug, Ukraine, while under the supervision of Nikolai Rimsky-Korsakov, and dedicated it to Rimsky-Korsakov's daughter Nadia.
Concerto in E-flat, subtitled Dumbarton Oaks 8-v-1938 (1937–38) is a chamber concerto by Igor Stravinsky, named for the Dumbarton Oaks estate of Robert Woods Bliss and Mildred Barnes Bliss in Washington, DC, who commissioned it for their thirtieth wedding anniversary.
 Composed in Stravinsky's neo-classical period, the piece is one of Stravinsky's two chamber concertos (the other being the Concerto in D, for strings, 1946) and is scored for a chamber orchestra of flute, B♭ clarinet, bassoon, two horns, three violins, three violas, two cellos, and two double basses.
 The three movements, Tempo giusto, Allegretto, and Con moto, performed without a break, total roughly twelve minutes.
 The concerto was heavily inspired by Bach's set of Brandenburg Concertos, and was the last work Stravinsky completed in Europe, started in spring 1937 at the Château de Montoux near Annemasse, near Geneva, Switzerland, and finished in Paris on March 29, 1938 .
Michael Haydn's Symphony No. 34 in E-flat major, Perger 26, Sherman 34, MH 473, written in Salzburg in 1788, is the last E-flat major symphony he wrote, the first of his final set of six symphonies.
Igor Stravinsky composed his Mass between 1944 and 1948.
 This 19-minute setting of the Roman Catholic Mass exhibits the austere, Neoclassic, anti-Romantic aesthetic that characterizes his work from about 1923 to 1951.
 The Mass also represents one of only a handful of extant pieces by Stravinsky that was not commissioned.
 As such, part of the motivation behind its composition has been cited by Robert Craft and others as the product of a spiritual necessity.
Jeu de cartes (En.
, "Card Game") is a ballet in three "deals" by Igor Stravinsky composed in 1936–37, with libretto by the composer in collaboration with M. Malaieff (a friend of Stravinsky's eldest son ) and choreography by George Balanchine.
 The ballet was premiered by the American Ballet at the Metropolitan Opera House, New York City on 27 April 1937, with the composer conducting.
 The European premier was on 13 October 1937 at the Dresden Staatsoper.
 The New York City Ballet premiere took place on 15 February 1951 under the title "The Card Game" at City Center of Music and Drama, New York.
Michael Haydn's Symphony No. 26 in E-flat major, Perger 17, Sherman 26, MH 340, written in Salzburg in 1783, was the first in the set of the only three symphonies of Haydn's published in his lifetime.
 It was one of several E-flat major symphonies attributed to Joseph Haydn (Hob.
 I:Es17).
The Symphony in E-flat major, Op. 1, is the first published work composed by Igor Stravinsky during his apprenticeship with Nikolai Rimsky-Korsakov.
 It is also his first composition for orchestra.
 Of classical structure, it is broadly influenced by Rimsky-Korsakov, Glazunov, Tchaikovsky and Wagner.
 It was composed in 1905–1907 and revised in 1913.
 It lasts for about forty minutes.
The Symphony No. 8 in E-flat major, Op.
 83, was composed by Alexander Glazunov in 1905, and was published two years later.
 It was an important influence on Igor Stravinsky's Symphony in E-flat.
Nikolai Andreyevich Rimsky-Korsakov (18 March [O.S. 6 March] 1844 21 June [O.S. 8 June] 1908 ) was a Russian composer, and a member of the group of composers known as The Five.
 He was a master of orchestration.
 His best-known orchestral compositions—"Capriccio Espagnol", the "Russian Easter Festival Overture", and the symphonic suite "Scheherazade"—are staples of the classical music repertoire, along with suites and excerpts from some of his 15 operas.
 "Scheherazade" is an example of his frequent use of fairy tale and folk subjects.
Scherzo fantastique, op. 3, composed in 1908, is the second orchestral work by Igor Stravinsky (preceded by the Symphony in E-flat).
 It was inspired by Maurice Maeterlinck's 1901 essay "La Vie des Abeilles" (The Life of Bees), which Stravinsky and his wife Catherine Nossenko read in 1907.
 Ten years later, Léo Staats adapted it as a ballet for the Opéra Garnier, with the title "Les Abeilles".

Question: What was the nationality of the man under whose apprenticeship Igor Stravinsky composed The Symphony in E-flat major?
Answer: Russian