Help! Who is this woman?

[NNEL]

Hello, I was exploring Atahualpa Yupanqui's discography on Spotify and I found this album in which it is clearly not him who sings.

https://open.spotify.com/album/6c6RCAuqbnIHEqkyHEsY8o?si=tWwBlgKDTdSNjumum6yexA
So who is the person who sings? Does anyone know? I already did a quick Google search but couldn't find anything about it, not even on Wikipedia. It would be sad if this woman was forgotten with how sweet her voice is. I would really like to hear more of her works.

Thanks.