Ordnance Survey is a Scottish electronic music duo known for their experimental and ambient soundscapes. Formed in 2009 by David McSherry and John Macpherson, the duo has released a series of critically acclaimed albums, including "Field Work" (2013), "Ampere" (2016), and "Town Hall" (2019). Their music often incorporates field recordings, found sounds, and intricate electronic textures, creating immersive and atmospheric experiences that explore the boundaries of electronic music.