Sibelius, Jean, 1865-1957. Symphonies, no. 7, op. 105, C major

The Symphony No. 7 in C major, Op. 105, is a single-movement work for orchestra written from 1914 to 1924 by the Finnish composer Jean Sibelius. The composition is notable for having only one movement, in contrast to the standard symphonic formula of four movements. It has been described as "completely original in form, subtle in its handling of tempo, individual in its treatment of key and wholly organic in growth" and "Sibelius's most remarkable compositional achievement". After Sibelius finished its composition on 2 March 1924, the work was premiered in Stockholm on 24 March as Fantasia sinfonica No. 1, a "symphonic fantasy". The composer was apparently undecided on what name to give the piece, and only granted it status as a symphony after some deliberation. For its publication in 1925, the score was titled "Symphony No. 7 (in one movement)".