Is there a way to make (or get ) an audio version of the concert? I want to load it to my mp4 player. Thanks

I know I’m late, but GOG delivers its movies as .mp4 files, so you should be able to convert the video to a audio file using dBpoweramp or VLC, and then separate into individual tracks as desired using Audacity.

No, not to late. Although I did a kind of work around, I still will look at those programs. Thanks.