Nils Henrik Asheim was the initiator and host of this project where Olivier Messiaen's complete organ works were performed in one day. The concert spanned 9 hours in total, from 15:00 to 24:00. It was divided between 8 organists: Jennifer Bate (UK), Thomas Ospital (FR), Lidia Książkiewicz (PL/FR), Kåre Nordstoga (NO), Thomas Lacôte (FR) Nils Henrik Asheim (NO), James McVinnie (UK), Colin Mark Andrews (UK/USA).
The concert took place in two rooms simultaneously. In the orchestra hall (Fartein Valen), the organists performed live and the audience was seated as in a conventional concert. The neighbouring hall (Zetlitz), a large "black box" venue, operated more like an arts installation space where the public was allowed to move freely around.