With his brother Peter Brewis, he formed Field Music, a rock band based in Sunderland, Tyne and Wear in 2004.
A collection of B-sides and earlier songs (including tracks written for The New Tellers and Electronic Eye Machine), Write Your Own History, was released in May 2006.
During the hiatus of Field Music from 2007 to 2009, he worked on a personal musical side project School of Language[3] releasing the album Sea from Shore in February 2008 through Memphis Industries (in the UK and Ireland) and Thrill Jockey Records (in the US and Europe).
In the same-titled album The Week That Was released on 18 August 2008, also with Memphis Industries, David Brewis was featured on some of the tracks.
David Brewis has also played with former Fiery Furnaces singer Eleanor Friedberger on her UK tour in the summer of 2013.