Konstantin Fyodorovich Yuon or Juon (Russian: Константин Фёдорович Юон October 24 [O.S. October 12] 1875 – April 11, 1958) was a noted Russian painter and theatre designer associated with the Mir Iskusstva. Later, he co-founded the Union of Russian Artists and the Association of Artists of Revolutionary Russia.

Yuon was born in Moscow to the family of a banking clerk of Swiss-Russian origin. His brother Paul Juon was a notable composer.

From 1892 to 1898 he studied at the Moscow School of Painting, Sculpture and Architecture where Konstantin Savitsky and Konstantin Korovin were among his distinguished teachers. After graduating from the Moscow Art School he took private lessons from Valentin Serov (1898–1900). During several trips to Western Europe, particularly in Paris, he became acquainted with the cityscapes of Camille Pissarro and other Impressionists, but retained his own distinctive style.

In 1900 he opened the first private painting and drawing school in Moscow. Later he taught in Leningrad Academy of Arts and the Surikov Art Institute in Moscow. His studio in Moscow was widely used by other painters. He designed sets for plays at the Moscow Art Theatre and the Maly Theater, becoming the official designer for this theater from 1945 to 1947. He also contributed sets for operas.

Sergei Vasilievich Rachmaninoff (Russian: Серге́й Васи́льевич Рахма́нинов) (Russian pronunciation: [sʲɪrˈɡʲej rɐxˈmanʲɪnəf]; 1 April [O.S. 20 March] 1873 – 28 March 1943) was a Russian composer, pianist, and conductor. Rachmaninoff is widely considered one of the finest pianists of his day and, as a composer, one of the last great representatives of Romanticism in Russian classical music. Early influences of Tchaikovsky, Rimsky-Korsakov, and other Russian composers gave way to a thoroughly personal idiom that included a pronounced lyricism, expressive breadth, structural ingenuity, and a tonal palette of rich, distinctive orchestral colors. The piano is featured prominently in Rachmaninoff's compositional output. He made a point of using his own skills as a performer to explore fully the expressive possibilities of the instrument. Even in his earliest works he revealed a sure grasp of idiomatic piano writing and a striking gift for melody.

Rachmaninoff was born on 1 April [O.S. 20 March] 1873 in Semyonovo, near Great Novgorod, in north-western Russia into a family of the Russian aristocracy, originally of partly Tatar descent, which had been in the service of the Russian tsars since the 16th century. His parents were both amateur pianists. When he was four, his mother gave him casual piano lessons, but it was his paternal grandfather, Arkady Alexandrovich Rachmaninoff, who brought Anna Ornatskaya, a teacher from Saint Petersburg, to teach the 9 year old Sergei in 1882. Ornatskaya remained for two or three years, until the family's house in Semyonovo had to be sold to settle debts and the Rachmaninoffs moved to Saint Petersburg.

Paul Juon (Pavel Fyodorovich Yuon; Russian: Павел Фёдорович Юон March 6, 1872 – August 21, 1940) was a Germanised Russian composer

He was born in Moscow, where his father was an insurance official. His mother was German, and he went to a German school in Moscow. He entered the Moscow Conservatory in 1889, where he studied violin with Jan Hřímalý and composition with Anton Arensky and Sergei Taneyev. He completed his studies at the Hochschule für Musik in Berlin, under Woldemar Bargiel. His first (privately) printed works, two Romanzen (lieder) appeared in 1894, the year he began studies with Bargiel. During his time in Berlin he was a composition professor, employed by Joseph Joachim; his students included Heinrich Kaminski, Stefan Wolpe, Philipp Jarnach, Max Trapp, Henry Jolles, and Gunnar Johansen. He moved to and retired in Switzerland in 1934, and died in Vevey.

His works include sonatas for viola, cello, winds, and three for violin (the third was recorded on a multi-LP set called Musik zwischen den Kriegen : eine Berliner Dokumentation), four symphonies (including one in manuscript) and also a chamber symphony, four string quartets, several piano trios, piano quartets and piano quintets as well as one sextet for piano and strings from 1902 and a wind quintet, a number of concerted works including three violin concerti and a triple concerto with piano trio, many piano works and lieder, and a number of stage works including an opera Aleko.