LONDON.- Tate Britain has commissioned Tacita Dean to create its Christmas tree for 2009, entitled Weihnachtsbaum. It will be on display at Tate Britain from 11 – 23 December 2009. Dean has created a traditional and yet quietly contemplative response to the commission, selecting a 4 metre high Nordman Fir to stand in the centre of the gallery’s Rotunda. This has been decorated with hand-dipped beeswax candles which have been made especially for the work. Each afternoon at 16:00, as the sun sets and light fades from the gallery, the candles will be lit one by one. Illuminating the tree for approximately two hours, the candles are designed to