Oak Apple Orchestra at If Wet, 2014
The Oak Apple Orchestra comprises of small electric clocks modified so the second hand acts as a hammer, striking resonating objects (tin cans originally, but now guitars, glasses and other things) with aak apples, formed by secretions from from wasp larva, at inevitably regular intervals.
As with a lot of those early If Wets, I was taking photos.
The current iteration of the orchestra is at Artefact, Stirchley, throughout August and into September. It has evolved splendidly into a real body of work and is highly recommended.