Repeating Patterns, Purcell Room, London

Minimalism: how it all began . . . how it all began . . . how it all began . . . how it all began . . . how it all began . . . 

John Cage: Journeys in Sound

This fascinating, eloquent DVD draws on archive footage of the composer at work and interviews with surviving collaborators

Life brought to art

To ward off the homogenisation of experience, it is important to shape exhibitions as long-duration projects

Nothing really matters

The Hayward Gallery’s exhibition of invisible art is challenged by the nature of its subject yet still captures the imagination. By Jackie Wullschlager