What a voice! Incredible range. Go for it! :)
Her technique was really good.
I have about four octaves, but I love my lower register best. I think I was what is called a ‘Dramatic Soprano” but as I have gotten older, I have become a True Contralto.
I was just listening to some very old recordings of Van Morrison and Mick Jagger, and their voices have darkened with age too.
So I sing a lot of Van and Stones in the original keys, even though I am a gal.