Nikolai Rimsky-Korsakov
Nikolai Andreyevich Rimsky-Korsakov (
Russian: 
Никола́й Андре́евич Ри́мский-Ко́рсаков, Nikolaj Andreevič Rimskij-Korsakov, 
Russian pronunciation: [nʲɪkəˌlaj ˌrʲim.skʲɪj ˈkorsəkəf], 18 March 
[O.S. 6 March] 1844,
[a 1] – 21 June 
[O.S. 8 June] 1908) was a Russian composer, and a member of the group of composers known as 
The Five.
[a 2] He was a master of 
orchestration. His best-known orchestral compositions—
Capriccio Espagnol, the 
Russian Easter Festival Overture, and the symphonic suite 
Scheherazade—are considered 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.
Rimsky-Korsakov believed, as did fellow composer 
Mily Balakirev and critic 
Vladimir Stasov, in developing a 
nationalistic  style of classical music. This style employed Russian folk song and  lore along with exotic harmonic, melodic and rhythmic elements in a  practice known as musical 
orientalism,  and eschewed traditional Western compositional methods. However,  Rimsky-Korsakov appreciated Western musical techniques after he became a  professor of musical composition, 
harmony and orchestration at the 
Saint Petersburg Conservatory  in 1871. He undertook a rigorous three-year program of self-education  and became a master of Western methods, incorporating them alongside the  influences of 
Mikhail Glinka  and fellow members of The Five. His techniques of composition and  orchestration were further enriched by his exposure to the works of 
Richard Wagner.
For much of his life, Rimsky-Korsakov combined his composition and  teaching with a career in the Russian military—at first as an officer in  the 
Imperial Russian Navy,  then as the civilian Inspector of Naval Bands. He wrote that he  developed a passion for the ocean in childhood from reading books and  hearing of his older brother's exploits in the navy. This love of the  sea might have influenced him to write two of his best-known orchestral  works, the musical tableau 
Sadko (not his later opera of the same name) and 
Scheherazade.  Through his service as Inspector of Naval Bands, Rimsky-Korsakov  expanded his knowledge of woodwind and brass playing, which enhanced his  abilities in orchestration. He passed this knowledge to his students,  and also posthumously through a textbook on orchestration that was  completed by his son-in-law, 
Maximilian Steinberg.
Rimsky-Korsakov left a considerable body of original 
Russian nationalist  compositions. He prepared works by The Five for performance, which  brought them into the active classical repertoire (although there is  controversy over his editing of the works of 
Modest Mussorgsky),  and shaped a generation of younger composers and musicians during his  decades as an educator. Rimsky-Korsakov is therefore considered "the  main architect" of what the classical music public considers the Russian  style of composition.
[1]  His influence on younger composers was especially important. While  Rimsky-Korsakov's style was based on those of Glinka, Balakirev, 
Hector Berlioz and 
Franz Liszt, he "transmitted this style directly to two generations of Russian composers" and influenced non-Russian composers including 
Maurice Ravel, 
Claude Debussy, 
Paul Dukas and 
Ottorino Respighi.
[2] - Wikipedia