You might know "Middle Eight" as a musical term – the section (usually in the middle, oddly enough) of a song that breaks up the repetition of verses and choruses by bringing in a new element or two. It's the surprise moment, the new idea. At Middle Eight in Covent Garden, they have conjured an appropriately surprise moment at their bar with a new cocktail menu invented by their Head Mixologist Maurice Lawrence (formerly of Sketch and No Fifty Cheyne). He's called it "A Sip of Theatre" and, if you're going to the theatre you're ideally placed – Middle Eight is next door to the Connaught Rooms, round the corner from the Royal Opera House and a stone's throw from Drury Lane. The bar itself looks out through floor-to-ceiling windows on to Great Queen Street, and it's a stage set for Lawrence who promises that "every sip is a performance" when it comes to his creations. There is, of course, quite a long list of classic cocktai