Herbert Kretzmer said in 1000 UK #1 Hits
: "What they needed was a song to link the seven plays and the producer thought I might write something for Marlene Dietrich as she represented the ageless woman. I didn't like that idea much as if you're going to write about a woman's mystique, it would be better if it were not sung by a woman. If she sung about her own mystery the song would be too calculated and knowing. I said, 'It should be a song about a woman as seen by a man, and what better man than Charles Aznavour, who sings about love and romance?' I brought him into the project and it turned out terribly well.
Writing a theme song is no easy ride. The first verse could only run for 35 seconds. The time before the play began, and it had to run over the main titles and be complete in itself. Then it had to be stretched out to a record so that it did not sound like padding. At the time Aznavour was touring all over the place and it took some time to get a melody from him. The moment he played me that long, opening note, the word 'She' jumped into my mind and I knew we had the song."