[5] St. John wrote the original music for the Jeremy Deller and Nick Abrahams film The Bruce Lacey Experience,[6] and in 2012 produced the Folklore Tapes "Pendle, 1612" compilation album with David Chatton Barker, commemorating the anniversary of the Pendle Witch Trials.
Water of Life (2013), with Tommy Perman, explored water in the city of Edinburgh through visual art, writing and sound;[8] the solo project Surface Tension (2015) used sound art and photography to document pollution in the River Lea in London and was shown at Stour Space, London and The Lighthouse, Glasgow;[9] and a sound installation Concrete Antenna (2015), with Tommy Perman and Simon Kirby, exhibited at the Edinburgh Sculpture Workshop through 2015–16.
[10] Emergent Landscapes (2016) was a participatory installation at Switch House, Tate Modern, involving collaborative cairn sculpture, soundscape creation and film work using manipulated Super 8.
[11] Soundmarks is a collaboration launched in 2019 with archaeologist Rose Ferraby to use sound and visual art to explore sub-surface landscapes at the Roman town of Aldborough.
[12] The project uses field recordings[13] to create an imagined sonic trail around the Roman village, which can be listened to on site or online.