From StarWars.com:
"Well, Star Wars: A Musical Journey just gave its debut performance on Friday night (April 10) in front of a crowd of 20,000 in London, and the fan world has been abuzz ever since. Fan Mark Newbold was among the lucky thousands who were there to witness this latest expression of Star Wars magic, and blogged a play-by-play account of the evening's playlist along with descriptions of the imagery displayed on the enormous LED screens backing the orchestra..."

See also:
Star Wars: A Musical Journey
Star Wars: A Musical Journey - The Journey Begins...
Star Wars: A Musical Journey - Around the Clock Around the Planet
Star Wars: A Musical Journey - Tour