The concert was recorded in the legendary hall "Matrix", instead of huge rock along with the "Winterland" or "Fillmore" and "Marquee" - to London- or other course.
It is in 1967, that is, the beginnings of the group. Many titles we will therefore find appearing on the first two albums by The Doors. They are all beautifully played, sung, products, and a superb "Soul kitchen". This double is a delight. It will even be entitled to exclusive tracks in the studio: "Money" or "I'm a king bee" "Get out of my life woman" (which show that the blues was present in their inspiration) and two that are not registered four years later, "Gloria" or "Crawling King Snake".
To learn quickly, if I may counsel, if you can find cheap; nice bag, with its surprising but nice graphics.