Jean Sibelius.

Jean Sibelius came into the world in Hämeenlinna, Finland, in December 1865, the son of physician Christian Gustaf Sibelius and Maria Charlotta. His father died of typhoid fever in 1868, leaving the family in debt. His mother and maternal grandfather raised him, while his uncle Pehr Ferdinand Sibelius, an amateur violinist, served as a surrogate father. Pehr gave him a violin in 1875, sparking his musical interest. He received piano lessons from an aunt but preferred violin. By 1881, he composed his earliest known piece, Vattendroppar Water Drops, for violin and cello. After graduating secondary school in 1885 with poor grades except in mathematics and botany, he briefly studied law at the Imperial Alexander University. He then transferred to the Helsinki Music Institute later the Sibelius Academy to pursue music full-time.

In 1892, Sibelius completed Kullervo, a symphonic poem based on the Finnish epic Kalevala. The work was a breakthrough, praised for its confidence and evocation of Finnic rune singing. After 1892, he focused on orchestral music. In 1899, he completed his First Symphony and the patriotic Song of the Athenians, a symbol of Finnish nationalism. His tone poem Finlandia 1900 became one of his most popular works, used to protest Russian repression. An international tour that year brought him fame in Stockholm, Copenhagen, Hamburg, Berlin, and Paris. The Second Symphony 1902 received an enthusiastic reception in Finland. In 1903, he wrote incidental music for the play Kuolema, whose opening number Valse triste became hugely popular. He built his home Ainola in 1904 near Lake Tuusula. After health scares including throat cancer operations in 1907-1908, he resumed touring and found success in the UK. The Fourth Symphony 1911 divided audiences. The Oceanides, his sea piece from 1914, received a warm reception at the Norfolk Chamber Music Festival in Connecticut. World War I interrupted his royalties, but he continued composing, completing the Fifth Symphony in 1915 and conducting its premiere on his 50th birthday. He finished the Sixth Symphony in 1923 and the Seventh in 1924. In 1926, he entered semi-retirement, spending years on an unfinished Eighth Symphony before abandoning it in 1938.

Sibelius married Aino Jarnefelt in 1892. They had six daughters: Eva 1893, Ruth 1894, Kirsti 1898, Katarina 1903, Margareta 1908, and Heidi 1911. In 1904, he moved his family into Ainola, a house named after Aino, financed by concert profits. Sibelius struggled with alcoholism and overspending; in 1907 he resolved to quit drinking after his wife fell ill. He underwent throat cancer surgery in 1908, prompting him to give up smoking and drinking. During the Finnish Civil War in 1918, he supported the Whites but remained non-combatant; Red Guards searched his house twice. In the 1920s, he developed a hand tremor and essential tremor, treating the symptoms with alcohol. He turned down a teaching offer from George Eastman in the early 1920s. After 1926, he lived in semi-retirement at Ainola, rarely visiting Helsinki, but receiving visitors and grandchildren. His wife Aino survived him, living at Ainola until her death in 1969.

The United Nations General Assembly observed a moment of silence for Sibelius after his death in 1957. He received a state funeral, and his remains were buried in the garden of Ainola. In 1972, his daughters sold Ainola to the Finnish state; it opened as a museum in 1974. He has been commemorated on Finnish stamps and currency. On 11 September 2015, a set of three stamps marked the 150th anniversary of his birth. His music remains central to Finnish national identity. The Helsinki Music Institute was renamed the Sibelius Academy in his honor. He ranks among the great nationalist composers, alongside Edvard Grieg, capturing the spirit of Finland in works like Finlandia and the seven symphonies.