카사치오네 (Cassazione, op. 6)

Cassazione, Op. 6, is a single-movement concert piece for orchestra written in 1904 by the Finnish composer Jean Sibelius. Its title refers to the cassation, a genre similar to the serenade, that was popular in the eighteenth century. Sibelius originally structured the work in five "episodes," although upon revision in 1905 he reduced this to four. Although his opus numbers were already in the forties, he assigned the unused number Op. 6 to this work, implying an earlier composition date.