Carl Orff (1895 - 1982) was a German classical composer. He is best known for his cantata Carmina Burana in fact possibly the only work by him that is well known.
Carmina Burana is a series of German medieval poems put to music and written in Latin, High German and Frankish. When it was first performed in 1937 it found favour with the Nazi party and Orff himself was suspected of being supportive of the regime.
I do like the song which precedes and ends the cantata 'O Fortuna' which is a song to the goddess of good luck. Below it is sung by the Japanese Shinyukai Choir with the Berlin Philharmonic.
Here is the complete cantata sung by the Radio France Choir and accompanied by only two grand piano's and percussion.
Carl Orff's discography can be found here.