In 2008, as part of a Henry Moore Fellowship at the Royal Academy of Music, the composer created a response to Shibboleth, the astonishing giant crack created in the floor of the Turbine Hall at Tate Modern by the Colombian artist Doris Salcedo. Tate enabled filmmaker Immo Horn to capture the performance delivered into the entire 170m length of the fissure by violinist Peter Sheppard Skærved. The music has been reprised both by Peter and also by Philippa Mo, who performed Shibboleth twice over two successive days in Cornwall, at CAST in Helston and Porthmeor Studios in St Ives.