It comes to something when the logic of a German act calling themselves “Gas” is the least troubling element of a perfomance. Not that Wolfgang Voigt's ambient music, or the slowly-evolving digital art of Petra Hollenbach projected on the Barbican's cinema screen, contained any obvious shock tactics – but the whole 80 minutes created just about as unsettling an experience as one could imagine from abstracted sound and image.

Bertolt Brecht was probably made for them: Deborah Warner directing Fiona Shaw in Mother Courage and her Children is as desirable a coupling, surely, as the Warner-Shaw Richard II or Happy Days, both immensely satisfying showcases for the director's imaginative reach and the actress's fabled versatility.

The radical modern choreographer William Forsythe (b 1950) was celebrated in a week of events in London’s stages this year, marking his transition from mouldbreaking neo-classical ballet to a more collaborative, theatre mode.