This is all great, thanks for uploading it. What about the "Xi" track?

Compilation 2

Joel Nielsen - BMS - Black Mesa Theme

I did not make this it was made by Joel Nielsen on the black mesa team. All credit goes to them. 
-Black Mesa SoundTrack 02 Internal Conflict

I did not make this it was made by Joel Nielsen on the black mesa team. All credit goes to them.
-Black Mesa SoundTrack 21 Ascension Reprise