I have 9 cd's of Nana,and just ordered 9 more.
This one I haven't heard yet,it is not necessary to have heard it.
I think she has one of the most beautiful voices I have heard yet.
I have a list of 90 odd cd's she has recorded,and if i live long enough,i will eventually have them all.
I noticed on one page,you have listed 3 other singers.
I would rank Nana ,number one,with Sarah Brightman ,a close second and Charlotte chirch coming in third. But Nana is the most.
She is a beautiful lady and a beautiful singer.