The Boston Symphony Orchestra is one of the most prominent U.S. symphonic ensembles, with deep roots in the Germanic practices that formed the model for American orchestral culture. The orchestra's catalogue of recordings on the RCA Victor label in the middle of the 20th century, artistically ambitious and sonically top-notch thanks to the ambiance of Boston's magnificent Symphony Hall, continue to set a standard. The Boston Symphony Orchestra was formed in 1881 with principal support from banker Henry Lee Higginson, who also spearheaded the construction of Symphony Hall and its opening in 1900. Its membership consisted largely of German-trained musician, and its first conductor, George Henschel, was a friend of Brahms. Subsequent conductors were German or, in the case of Arthur Nikisch, Hungarian. Especially important was Karl Muck, a former conductor of the Berlin Court Opera (now the Berlin State Opera), who led the orchestra from 1906 to 1908, and again from 1912 to 1918 after the leadership of Max Fiedler in the interim. Muck stepped down and was held in an internment camp in Georgia after espousing pro-German sympathies during World War I. But beginning with Pierre Monteux in 1919, the Boston Symphony boasted a series of internationally renowned and non-German conductors. Monteux was French; Serge Koussevitsky, who led the orchestra from 1924 to 1949, was Russian and a towering figure who commissioned numerous modern works and led the world premieres of Stravinsky's Symphony of Psalms and Bartók's Concerto for Orchestra, among many other now-standard works, and founded the annual Tanglewood Music Festival and its associated talent-development classes, with the BSO in residence. Koussevitsky was succeeded by Alsatian-French Charles Münch (1949-1963) and the Austrian-Jewish Erich Leinsdorf, whose RCA recordings were central to collections in the LP era in the U.S. Leinsdorf was succeeded for several years by the ailing William Steinberg and in 1973 by Japanese-born Seiji Ozawa, whose leadership was artistically controversial but long, and also marked by significant recordings, mostly on the Deutsche Grammophon label. Another conductor with an operatic background, James Levine, followed Ozawa in 2002; he stepped down due to ill health and Latvian conductor Andris Nelsons, who had taken on Mahler's vast Symphony No. 8 ("Symphony of a Thousand") as an emergency replacement for Levine, was named conductor. His contract has been extended through 2022, and he has led the orchestra in new recordings with Deutsche Grammophon, including a live cycle of the symphonies of Dmitri Shostakovich. A notable feature of the orchestra's musical life is the existence of the Boston Pops light music orchestra, with personnel drawn from the ranks of the BSO; under conductor Arthur Fiedler (son of Max), that group attained unprecedented popularity on American radio and television as well as in live concerts. The Boston Symphony Orchestra has also been heard on the scores of two films by director Steven Spielberg, Schindler's List and Saving Private Ryan, with the scores' composer, John Williams, as conductor. ~ James Manheim

Finland's Jean Sibelius is perhaps the most important composer associated with nationalism in music and one of the most influential in the development of the symphony and symphonic poem.

Sibelius was born in southern Finland, the second of three children. His physician father left the family bankrupt, owing to his financial extravagance, a trait that, along with heavy drinking, he would pass on to Jean. Jean showed talent on the violin and at age nine composed his first work for it, Rain Drops. In 1885 Sibelius entered the University of Helsinki to study law, but after only a year found himself drawn back to music. He took up composition studies with Martin Wegelius and violin with Mitrofan Wasiliev, then Hermann Csillag. During this time he also became a close friend of Busoni. Though Sibelius auditioned for the Vienna Philharmonic Orchestra, he would come to realize he was not suited to a career as a violinist.

In 1889 Sibelius traveled to Berlin to study counterpoint with Albert Becker, where he also was exposed to new music, particularly that of Richard Strauss. In Vienna he studied with Karl Goldmark and then Robert Fuchs, the latter said to be his most effective teacher. Now Sibelius began pondering the composition of the Kullervo symphonic poem, based on the Kalevala legends. Sibelius returned to Finland, taught music, and in June 1892, married Aino Järnefelt, daughter of General Alexander Järnefelt, head of one of the most influential families in Finland. The premiere of Kullervo in April 1893 created a veritable sensation, Sibelius thereafter being looked upon as the foremost Finnish composer. The Lemminkäinen suite, begun in 1895 and premiered on April 13, 1896, has come to be regarded as the most important music by Sibelius up to that time.

In 1897 the Finnish Senate voted to pay Sibelius a short-term pension, which some years later became a lifetime conferral. The honor was in lieu of his loss of an important professorship in composition at the music school, the position going to Robert Kajanus. The year 1899 saw the premiere of Sibelius' First Symphony, which was a tremendous success, to be sure, but not quite of the magnitude of that of Finlandia (1899; rev. 1900).

In the next decade Sibelius would become an international figure in the concert world. Kajanus introduced several of the composer's works abroad; Sibelius himself was invited to Heidelberg and Berlin to conduct his music. In March 1901, the Second Symphony was received as a statement of independence for Finland, although Sibelius always discouraged attaching programmatic ideas to his music. His only concerto, for violin, came in 1903. The next year Sibelius built a villa outside of Helsinki, named "Ainola" after his wife, where he would live for his remaining 53 years. After a 1908 operation to remove a throat tumor, Sibelius was implored to abstain from alcohol and tobacco, a sanction he followed until 1915. It is generally believed that the darkening of mood in his music during these years owes something to the health crisis.

Sibelius made frequent trips to England, having visited first in 1905 at the urging of Granville Bantock. In 1914 he traveled to Norfolk, CT, where he conducted his newest work The Oceanides. Sibelius spent the war years in Finland working on his Fifth Symphony. Sibelius traveled to England for the last time in 1921. Three years later he completed his Seventh Symphony, and his last work was the incidental music for The Tempest (1925). For his last 30 years Sibelius lived a mostly quiet life, working only on revisions and being generally regarded as the greatest living composer of symphonies. In 1955 his 90th birthday was widely celebrated throughout the world with many performances of his music. Sibelius died of a cerebral hemorrhage in 1957. ~ Robert Cummings