Cambrian Air - for horn duo and electronics - was commissioned for the June 2011 Seven Bridges street festival, an artistic regeneration project of Loughborough Junction. The piece was premiered outdoors under the Cambria Bridge by horn players Meredith Moore and Laetitia Stott.

On a theme of the Cambrian Explosion - of new life, evolution and regeneration - the piece takes the St Francis melody as the theme in a set of joyous (and chaotic) variations.