I have been sent a translation of what Alan Simon says about Siobhan in this documentary (around 4:30). Thank you to Stephanie LP Alan says: "Tristan and Yseult are also two great voices. I had to find an extraordinarily beautiful voice to embody/play Yseult. I really wanted to find an exceptional voice which is as a fresh spring water, a voice which is between classic and Celtic. And it was not easy to find this voice! I looked for a very long time and I eventually met a young Welsh person who is called Siobhan Owen. She comes from Australia and she possesses an extraordinary instrument that is her voice! She gives us the impression of being an angel fallen from the Sky!" Now isn't that lovely!!!