In the roof of the Royal Festival Hall was the last place we expected to find ourselves on a rainy Wednesday afternoon, but many more will venture there over the coming weeks to experience Klanghaus: On Air – the Edinburgh phenomenon which has transferred to the capital.
Surrounded by air purification machines in the eaves of the building, we joined art and rock band The Neutrinos and visual artist Sal Pittman to find out more.
Klanghaus: On Air runs at the Southbank Centre as part of Festival of Love until 29 July.