Description on Youtube:
György Ligeti (1923 - 2006), Volumina (1961 / 62; 1966), played by Franz Danksagmüller at the large organ in St. Jakobi, Lübeck.
Part of the program "Graphic Scores".
The score was adapted for video projection by Franz Danksagmüller.
www.danksagmueller.com