At Bangor Cathedral, Wales, in March 2011, I participated in an experimental sound and visual-art work with entitled Vox Populi  by the composer Andrew Lewis (Professor and Director of the Electroacoustic Music Studios at Bangor University). My contribution, entitled Intercessions, comprised 64 static and kinetic images of ‘prayer words’ arranged into four sets and projected onto one of the nave walls. The words combined in a variety of chance configurations, continuously auto-generating prayer requests during the period of the installation.