https://youtu.be/n3O1dxvZn78 Meav's vocals at the very beginning and at the very end of "Celtic Prayer" are among the highest hit by any Celtic Cutie. Meav's vocals near the end of Jesu Joy are pretty high too. (and many other examples I could name) I am not saying that the others like Chloe or MC etc. are not high ranged, but that Meav . I believe, remains 'Queen Of The Stratosphere". And not just in her younger days either, but in recent indie and CW concerts as well, and in her The Calling CD.
She makes my jaw drop every time.
I agree with everything you just said, James. Méav's high notes in "Celtic Prayer" and "Jesu, Joy of Man's Desiring" always give me chills. "The Soft Goodbye," "Carol of the Bells," and "O Come All Ye Faithful," do as well. Her voice definitely does stand out!