Talking on the sore subject: the sound. Indeed, it is not terrible. But this is a record that in 1967 carried out with the means at hand. By cons, what it sounds true and authentic! It looks like these pubs like The Marquee or 2 tracks were recorded. And it must have a lot of work for sound engineers to record company to present us with a more than acceptable versions. This evacuated, this album is a document and especially a jewel. We find training 1967 which lasted only one year before Peter Green and his two other accomplices that are John McVie and Mick Fleetwood to go away form the one true Fleetwood Mac (not feminised orchestra FM band now). The result is amazing and Peter Green has managed to forget Eric Clapton to whom he succeeded in the Bluesbreakers. Which guitar solos, friends! A knock you on your couch and do you take off. The voice of John Mayall exudes authentic blues that of Freddy King, Otis Rush among others whose songs are included. When, late in the year, it is time to take stock of the best achievements, it is certain that this album will be situated very high even at the top. A very large disk for any lover of blues.