In my opinion, this is the Best Live performance of Sacrament of Wilderness , by finnish band Nightwish - Jamsa , Finland - 2001 .

In Tarja Era, Nightwish usually played this song in its Original key (with very few exceptions).
This performance is so great because it is a common tour concert and inspite of that they played it perfect, in fact, Tarja's vocals here are similar to the Oceanborn album version.

Another great Live performances of this song (and also in the original key) are the Mexico one (also uploaded on my channel), and the one recorded for the DVD "From Wishes to Eternity" in Tampere 2002.

In this Video:
Tarja Turunen - vocals ; Tuomas Holopainen - keyboards ; Emppu Vuorinen - Guitars ; Jukka Nevalainen - Drums ; Sami Vänskä - Bass. 2012