AA One of the most critically renowned paintings of the 19th-century modernist movement is the French painter Edouard Manet's masterwork, A Bar at the Folies. Originally belonging to the composer Emmanuel Chabrier, it is now in the possession of The Courtauld Gallery in London, where it has also become a favourite with the crowds.

BThe painting is set late at night in a nineteenth-century Parisian nightclub. A barmaid stands alone behind her bar, fitted out in a black bodice that has a frilly white neckline, and with a spray of flowers sitting across her decolletage. She rests her hands on the bar and gazes out forlornly at a point just below the viewer, not quite making eye contact. Also on the bar are some bottles of liquor and a bowl of oranges, but much of the activity in the room takes place in the reflection of a mirror behind the barmaid. Through this mirror we see an auditorium, bustling with blurred figures and faces: men in top hats, a woman examining the scene below her through binoculars, another in long gloves, even the feet of a trapeze artist demonstrating acrobatic feats above his adoring crowd. In the foreground of the reflection a man with a thick moustache is talking with the barmaid.

CAlthough the Folies (-Bergere) was an actual establishment in late nineteenth-century Paris, and the subject of the painting was a real barmaid who worked there, Manet did not attempt to recapture every detail of the bar in his rendition. The painting was largely completed in a private studio belonging to the painter, where the barmaid posed with a number of bottles, and this was then integrated with quick sketches the artist made at the Folies itself.

DEven more confounding than Manet's relaxed attention to detail, however, is the relationship in the painting between the activity in the mirrored reflection and that which we see in the unreflected foreground. In a similar vein to Diego Velazquez' much earlier work Las Meninas, Manet uses the mirror to toy with our ideas about which details are true to life and which are not. In the foreground, for example, the barmaid is positioned upright, her face betraying an expression of lonely detachment, yet in the mirrored reflection she appears to be leaning forward and to the side, apparently engaging in conversation with her moustachioed customer. As a result of this, the customer's stance is also altered. In the mirror, he should be blocked from view as a result of where the barmaid is standing, yet Manet has repositioned him to the side. The overall impact on the viewer is one of a dreamlike disjuncture between reality and illusion.

EWhy would Manet engage in such deceit? Perhaps for that very reason: to depict two different states of mind or emotion. Manet seems to be conveying his understanding of the modern workplace, a place - from his perspective - of alienation, where workers felt torn from their 'true' selves and forced to assume an artificial working identity. What we see in the mirrored reflection is the barmaid's working self, busy serving a customer. The front-on view, however, bears witness to how the barmaid truly feels at work :hopeless, adrift, and alone.

FEver since its debut at the Paris Salon of 1882, art historians have produced reams of books and journal articles disputing the positioning of the barmaid and patron in A Bar at the Folies. Some have even conducted staged representations of the painting in order to ascertain whether Manet's seemingly distorted point of view might have been possible after all. Yet while academics are understandably drawn to the compositional enigma of the painting, the layperson is always likely to see the much simpler, more human story beneath. No doubt this is the way Manet would have wanted it.