THE ALMEIDA has utilised the greater space of its West End second home to create a backdrop as elegant as Racine's verse, but there is much more to admire in Jonathan Kent's excellent modern-dress Britannicus - which only has a handful of performances still to run - than Maria Bjornson's sumptuous corridor of power. Diana Rigg lends a surprisingly comic touch to the calculating Agrippina, struggling to claw back authority from her son, the psychotically resentful Nero, played by Toby Stephens (right).
Albery Theatre, London WC2 (0171-369 1740) 7.30pm
Tonight's your last chance to catch Sharks and Tarts, a much admired hour of Brecht and Weill songs performed by Sarah Davison as part of the One Woman monologue festival. Fans of The Threepenny Opera, say, or Mahagonny, will be well satisfied, as will anyone for whom the name Jonathan Cohen rings a bell; the PlayAway icon provides the music.
BAC, London SW11 (0171-223 2223) 9pm