Of the 3 images I have posted, the middle one (looking down on Jarre), this is from the 'Concert De Images' book and credited as "Houston", but is has no black keys and no 2nd step on the keyboard casing. The 3rd image is of Jarre testing the keyboard in Houston (daylight) you can see the 2nd step and the black keys. So, does this mean the Houston image (2nd one I posted) been mislabeled in the book, meaning it should be Lyon instead of Houston.
Jarre concerts attended - Destination Docklands 1988 - Paris La Defense 1990 - Europe In Concert 1993 (Manchester & London) - Oxygene Tour 1997 (Birmingham)
"A group of men and woman entered the laboratory one month ago to live in a smell free world. Body odour, sweaty arms pits and smelly feet are to create the energy to survive. A total mystery surrounds this experiment, and it's project code name: B.O and Smell'i "