Now I remember this but I can't find my copy of the tape...
From what I understand this is from a bootleg called "Die Laughing". It's a recording of one of the last backyard parties they preformed. Van Halen had just recorded their first album but it hadn't been released in stores yet. The guitar world didn't know "eruption" yet and if you heard the entire concert you would hear that the audience applause after the solo was very small compaired to the size of the crowd. Nobody "got it" yet.
Good stuff. Post the whole show if you can find it. It's great and they even played songs that didn't appear until Halen's 3rd-4th albums.
