The song used in the British Airways commercial is "Sous le dome epais" from the opera Lakme by Leo Delibes. It is the song Yanni had arranged for his album. I sang it in his "Yanni, Live at the Acropolis" TV Video and I believe my version appears again on his "In the Mirror" album. I have since arranged this song in two ways on my #1 New Age/Classical Crossover CD, "Infinite Voice." You can find clips and more at my website www.darlenekoldenhoven.com.