O Fortuna topped a 2009 list of the most-played classical music of the previous 75 years in the United Kingdom. O Fortuna "O Fortuna" is a medieval Latin Goliardic poem written early in the 13th century, part of the collection known as the "Carmina Burana". It is a complaint about Fortuna, the inexorable fate that rules both gods and mortals in Roman and Greek mythology. In 1935–36, "O Fortuna" was set to music by German composer Carl Orff as a part of "", the opening and closing movement of his cantata "Carmina Burana". It was first staged by the Frankfurt Opera on
Carmina Burana (Orff) approaches its renown, as evidenced in both pop culture's appropriation of "O Fortuna" and the classical world's persistent programming and recording of the work. In the United States, "Carmina Burana" represents one of the few box office certainties in 20th-century repertoire. Orff's disciple Wilhelm Killmayer in 1956 created a reduced version for soloists, SATB mixed choir, children's choir, two pianos and six percussion (timpani + 5). This version, authorized by Orff himself, allowed smaller ensembles the opportunity to perform the piece. The popularity of the work has ensured the creation of many additional arrangements for a variety of performing forces.