Underwater hydrophones at the Fall of Warness. The wind driving the turbines on Hammars Hill. Building a tidal machine at Leask Marine’s workshop. An electric car and a home air to water heating system.

As part of RGU’s Northwords project, Brian Cromarty has used field recordings to compose four pieces of music inspired by Orkney’s energy story. He will introduce his recordings and tell the story of how they developed, and there’s time to ask him more about the process.