A: Because Carl Orff is not dead long enough. In Canada and Europe, copyright lasts 70 years after death (2052). In the US, it lasts 95 years from publication (1936 -> 2031). Access will remain illegal until the 2030s-2050s.
The arrangement features two pianos, which share the melodic and harmonic responsibilities, often in dialogue with each other. The percussion section adds a vital rhythmic and textural dimension, with a range of instruments, including drums, timpani, and xylophone. Carmina Burana 2 Pianos Percussion Pdf
While the original 1937 version is under copyright in many regions, IMSLP (International Music Score Library Project) provides links to various editions and historical information. A: Because Carl Orff is not dead long enough