NDCP2 map09 music?

We were playing this wad in Zdaemon survival session yesterday and I really liked the music on map09. Where it is from?
I uploaded it here.

btw is anyone still working on the fix for this wad?

Yeah I was curious about that as well when I played through the wad. Probably one of my favorite songs to ever be used in a doom map, and it goes well with the map's grungy hi-tech theme.