The name of The Lemon Shed hasn't really changed. The bar is still named 'The Lemon Shed' but the exterior signage only says Candy with no mention of The Lemon Shed. I suggest that if the bar at an establishment has a name of its own e.g. 'Platform Bar @ Underground', then 'Lemon Shed, The' should have '@ Candy' added to cut out potential confusion. So my suggested name change is:

Lemon Shed, The @ Candy

Six days a week 'The Lemon Shed' operates as a bar, accessible through the Candy entrance with the Candy sign over the door. However, on Thursdays it could all kick off and admission is then charged to the event. If on Thursdays you just wanted to use the bar (The Lemon Shed) then you have to enter the building through a different entrance on that particular day.