That one song in The First Vision

[Its Spooky.5917]

I recently completed Knight of the Thorn and with it completed The First Vision story instance. I wasn't expecting to fight Riannoc and was actually thinking it'd just be a very long conversation before I moved on with my progress.
My attention was caught mid-battle by a track that played during the fight with Caladbolg's memory of the real Riannoc (and note; not the manifestation of his fears). I tried numerous searches just about everywhere I was familiar with (wiki pages, google searches, playlists, this very forum) to try and find the track but without knowing its name or anything about it besides that its related to Riannoc, I can't hope to find it. I doubt anyone will have information for something so mundane and really not all that important, but does anyone happen to know the particular track already?