Peter Frankl and the Hungarian foursome swap tricks of the trade with a pair of fledgling ensembles from the Guildhall and Royal College.
7.30pm Wigmore Hall, London W1 (0171-935 2141)
Jez Butterworth's behind-the-scenes look at the life of a Fifties rock star.
7pm Royal Court, London SW1 (0171-730 1745)
It might be argued that Diddley's only significant contribution to the history of rock is the syncopated riff that takes his name. If so, it's not a contribution to be sniffed at.
7.30pm, London Grand SW11 (0171-344 0044)