The Challenger blew up and with it McNair, his saxophone and the plan for this music.
The result is a very emotional album, probably the most emotional ever by Jarre. Time and again witnesses the songs (so working in Rendez-Vous 3 with the "Lacrimosa" from Mozart's Requiem) from his grief.
It's a consistently worth listening album, but it's a total fall very gloomy and depressed. But overall a good tip for friends synthesizer music.