Question: Who is the Russian composer of romantic music who has a style similar to Adrian Shaposhnikov?

Context paragraphs:
Alexander Serov: Alexander Nikolayevich Serov (Russian: Алекса́ндр Никола́евич Серо́в , Saint Petersburg, 23 January [O.S. 11 January] 1820 – Saint Petersburg, 1 February [O.S. 20 January] 1871 ) was a Russian composer and music critic.  He is notable as one of the most important music critics in Russia during the 1850s and 1860s and as the most significant Russian composer in the period between Dargomyzhsky's "Rusalka" and the works of Rimsky-Korsakov, Mussorgsky, and Tchaikovsky.

Historia Musical Romántica: Historia Musical Romántica (Eng.: "Romantic Music History"') is the title of a compilation album released by romantic music group Grupo Bryndis.  This album became their first number-one hit on the "Billboard" Top Latin Albums chart.

Alexander Gretchaninov: Alexander Tikhonovich Gretchaninov (Russian: Алекса́ндр Ти́хонович Гречани́нов ; ] ; 25 October [O.S. 13 October] 1864 , Kaluga – 3 January 1956, New York City) was a Russian Romantic composer.

Max Wagenknecht: Max Otto Arnold Wagenknecht (14 August 1857 – 7 May 1922) was a German composer of organ and piano music.  He was born in Woldisch Tychow, Pomerania, Free State of Prussia and spent most of his life in the Mecklenburg-Western Pomerania region where he was music teacher at the Franzburg Teachers’ College and in his later life organist and composer in Anklam.  He is most well known for Opus 5, “58 Vor- und Nachspiele”, completed in July 1889 in Franzburg.  The work demonstrates a remarkable gift for melodic organ compositions bridging traditional church music and the late 19th century romantic music era.

Romantic music: Romantic music is a period of Western classical music that began in the late 18th or early 19th century.  It is related to Romanticism, the European artistic and literary movement that arose in the second half of the 18th century, and Romantic music in particular dominated the Romantic movement in Germany.

Adrian Shaposhnikov: Adrian Grigoryevich Shaposhnikov, (Russian: Адриан Григорьевич Шапошников ; 1888 – 1967) was both a Russian classical music composer and a People's Artist of the Turkmen Soviet Socialist Republic.  His style is similar to Alexander Gretchaninov's.  His only familiar work is his Sonata for Flute and Harp, which has been recorded several times.

Alexander Radvilovich: Alexander Yuryevich Radvilovich (Russian: Александр Юрьевич Радвилович ; born 1955) is a Russian composer, pianist and teacher from Leningrad (now Saint Petersburg) from which Conservatory he also graduated at which he was under guidance from Sergei Slonimsky.  In 1992 and 1994 respectively he was the first ever composer of Russian origin to get education at the International New Music in Darmstadt.  He is known for his symphonies of two of his own poems called "Legend About Violinist" and "Pushkin".  At one time, after reading Fyodor Dostoyevsky he composed a string quartet called "The Boy at Christ’s New Year Celebration" and also designed a mini opera called "Let’s Write Fairy-tale".  He also composed an opera called "Hindrance" which was based on Danii Kharms' poem "Ruin of the Gods".  Currently he is a member of both Russian Composer’s and Saint Petersburg Composer's Unions and works as music pedagogue at the Humanitarian University of the Petersburg Conservatory.  On occasion, he tours the world as composer, pianist and leader of the Sound Ways which he also founded back in 1989.  His music is published by various labels in countries such as Russia, the Netherlands and the United States.

Jewish art music movement: The Jewish art music movement began at the end of the 19th century in Russia, with a group of Russian Jewish classical composers dedicated to preserving Jewish folk music and creating a new, characteristically Jewish genre of classical music.  The music it produced used Western classical elements, featuring the rich chromatic harmonies of Russian late Romantic music, but with melodic, rhythmic and textual content taken from traditional Jewish folk or liturgical music.  The group founded the St. Petersburg Society for Jewish Folk Music, a movement that spread to Moscow, Poland, Austria, and later Palestine and the United States.  Although the original society existed formally for only 10 years (from 1908 to 1918), its impact on the course of Jewish music was profound.  The society, and the art music movement it fostered, inspired a new interest in the music of Eastern European Jewry throughout Europe and America.  It laid the foundations for the Jewish music and Klezmer revival in the United States, and was a key influence in the development of Israeli folk and classical music.

Pyotr Ilyich Tchaikovsky: Pyotr Ilyich Tchaikovsky ( ; Russian: Пётр Ильи́ч Чайко́вский ; 25 April/7 May 1840 – 25 October/6 November 1893), often anglicized as Peter Ilich Tchaikovsky, was a Russian composer of the romantic period, some of whose works are among the most popular music in the classical repertoire.  He was the first Russian composer whose music made a lasting impression internationally, bolstered by his appearances as a guest conductor in Europe and the United States.  Tchaikovsky was honored in 1884, by Emperor Alexander III, and awarded a lifetime pension.

Henry Litolff: Henry Charles Litolff (7 August 1818 – 5 August 1891) was a piano virtuoso, composer of Romantic music, and music publisher.  A prolific composer, he is today known mainly for a single brief work – the scherzo from his Concerto Symphonique No. 4 in D minor – and remembered as the founder of the "Collection Litolff", a highly regarded publishing imprint of classical music scores.

Supporting paragraphs: Adrian Shaposhnikov Alexander Gretchaninov
Answer: Alexander Gretchaninov