[AbdesSalaam Attar, Perfumer Composer]

Yes the right tincture is from the back legs of the rut male goat. I do not know how they used the Hyraceum, but probably as Ambergris and Muskdeer was used in antiquity for the same effect, as incense in fumigation.
This does not mean that it is the only way it might be used.

AbdesSalaam Attar
Compositore Profumiere