What language was spoken in Utumno and Angband?

[Gordis]

Originally Posted by Valarauko5

Thirdly, and finally, as I have been learning Quenya as a speakable language, comparing the way that the "ring rhyme" (if you will forgive the pun) is spelled and pronounced, it appears very very similar to Third Age Quenya. Thus I would conclude that the "black speech" as it is called by Elrond in Rivendell when Gandalf speaks it, is actually a version of First Age Quenya modified slightly by Morgoth to fit as a more commanding, and twisted language.

What similarities do you actually see between Quienia and the BS? Could you, please, be more specific?
And Welcome to the Moot, Valarauko!