Carmina Burana is a scenic cantata composed by Carl Orff between 1935 and 1936. It is based on 24 of the poems found in the medieval collection Carmina Burana. Its full Latin title is Carmina Burana: Cantiones profanae cantoribus et choris cantandae comitantibus instrumentis atque imaginibus magicis ("Songs of Beuern: Secular songs for singers and choruses to be sung together with instruments and magic images.") Carmina Burana is part of Trionfi, the musical triptych that also includes the cantata Catulli Carmina and Trionfo di Afrodite. The best-known movement is "O Fortuna" that opens and closes the piece.
Orff first encountered the text in John Addington Symonds's 1884 publication, Wine, Women, and Song, which included English translations of 46 poems from the collection. Michel Hofmann, a young law student and Latin and Greek enthusiast, assisted Orff in the selection and organization of 24 of these poems into a libretto, mostly in Latin verse, with a small amount of Middle High German and Old Provençal. The selection covers a wide range of secular topics, as familiar in the 13th century as they are in the 21st century: the fickleness of fortune and wealth, the ephemeral nature of life, the joy of the return of Spring, and the pleasures and perils of drinking, gluttony, gambling and lust.
The percussion section consists of 8 timpani (one piccolo), 2 snare drums, bass drum, triangle, antique cymbals, crash cymbals, suspended cymbals, ratchet, castanets, sleigh bells, tam-tam, tambourine, tubular bells, 3 bells, 3 glockenspiels and xylophone.
The vocal parts include soprano solo, tenor solo, baritone solo, soli of 3 tenors, baritone, and 2 basses, a large mixed choir (soprano, alto, tenor, bass), a chamber choir (soprano, alto, tenor, bass) and a children's choir (ragazzi).
A reduced version for soloists, mixed choir, children's choir, 2 pianos and percussion was prepared by Orff's disciple Wilhelm Killmayer in 1956 and authorised by Orff himself, to afford smaller ensembles the opportunity of performing the piece.
An arrangement for wind ensemble was prepared by Juan Vicente Mas Quiles (b. 1921), who wanted to both to give wind bands a chance to perform the work and to facilitate performances in cities that have a high quality choral union and wind band but lack a symphony orchestra. A performance of this arrangement was recorded by the North Texas Wind Symphony under Eugene Corporon. In writing this transcription, Quiles maintained the original chorus, percussion, and piano parts.
Carmina Burana is structured into five major sections, containing thirteen movements total. Orff indicates attacca markings between all the movements within each scene.
Much of the compositional structure is based on the idea of the turning Fortuna Wheel. The drawing of the wheel found on the first page of the Burana Codex includes four phrases around the outside of the wheel:
Within each scene, and sometimes within a single movement, the wheel of fortune turns, joy turning to bitterness, and hope turning to grief. O Fortuna, the first poem in the Schmeller edition, completes this circle, forming a compositional frame for the work through being both the opening and closing movements.
Orff was influenced melodically by late Renaissance and early Baroque models including William Byrd and Claudio Monteverdi. It is a common misconception that Orff based the melodies of Carmina Burana on neumeatic melodies: while many of the lyrics in the Burana Codex are enhanced with neumes, almost none of these melodies had been deciphered at the time of Orff's composition, and none of them had served Orff as a melodic model. His shimmering orchestration shows a deference to Stravinsky. In particular, Orff's music is very reminiscent of Stravinsky's earlier work, Les Noces (The Wedding).
Rhythm for Orff, as for Stravinsky, is often the primary musical element. Overall, it sounds rhythmically straightforward and simple, but the metre will change freely from one measure to the next. While the rhythmic arc in a section is taken as a whole, a measure of five may be followed by one of seven, to one of four, and so on, often with caesura marked between them. These constant rhythmic changes combined with the caesura create a very "conversational" feel — so much so that the rhythmic complexities of the piece are often overlooked.
Some of the solo arias pose bold challenges for singers: the only solo tenor aria, Olim lacus colueram, must be sung almost completely in falsetto to demonstrate the suffering of the character (in this case, a burning swan). The baritone arias often demand high notes not commonly found in baritone repertoire, and parts of the baritone aria Dies nox et omnia must be sung in falsetto: a unique example in baritone repertoire. Also noted is the solo soprano aria, Dulcissime which demands extremely high notes. Orff intended this aria for a regular soprano, not a coloratura one, so that the musical strain would be obvious.
Several performances were repeated elsewhere in Germany, and though the Nazi bureaucracy was at first nervous about the erotic tone of some of the poems, they eventually embraced it and it became the most famous piece of music composed in Nazi Germany. The popularity of the work continued to rise after the war, and by the 1960s Carmina Burana was well established as part of the international classic repertory.
Alex Ross writes: "[Although Orff had collaborated with the Nazis] the music itself commits no sins simply by being and remaining popular. That 'Carmina Burana' has appeared in hundreds of films and television commercials is proof that it contains no diabolical message, indeed that it contains no message whatsoever." 
In retrospect the desire he expressed in the letter to his publisher has by and large been fulfilled: No other composition of his 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 music.

