Are luxury stores the victims of success? Our most fashionable neighbourhoods appear like they’ve been looted: a third of the stores in the heart of the city are empty! This retail rot is a new form of urban blight.

With his woolly grey hair and bow-legged gait the legendary improviser seems more like some kind of cosmic fisherman than an avant-garde musician. Perhaps in Japan this is one and the same thing?

It’s a shock to be reminded of the value of physical action and its energy in a digital age of ‘Likes’. As if in being here, and breathing in the atmosphere, something forgotten about people power is, quite literally, reborn.