How much of a good thing can there be before it gets to be too much? When it comes to reissues of The Beatles' Sgt Pepper's Lonely Hearts Club Band, it seems almost churlish to ask this question, such is the reverence that surrounds this album. To this day, Sgt Pepper remains the most common Number One choice of the greatest albums of all time, a status that is unlikely to be challenged for decades, or at least in my lifetime.

When it was released in June 1967, The Times' Kenneth Tynan wrote that it was "a decisive moment in the history of Western civilisation". Time magazine concluded that it was "a historic departure in the progress of music - any music" while Esquire simply called it "a masterpiece".

Renowned US rock writer Greil Marcus in The History of Rock n' Roll announced: "No one had ever heard anything like it; no one has heard anything like it since". Die-hard Beatles fans may debate which was their best album - Rubber Soul and Abbey Road spring to mind as contenders - but there's no doubt that Sgt Pepper was the most important.