Originally composed for euphonium and trombone quartet, Funk Theory became an instant success following its première on 7th October 2003, featuring the all female Bones Apart trombone quartet and David Childs in Manchester's RNCM Concert Hall. Funk Theory is now available in this arrangement with piano and/or CD accompaniment.

The music is based on two simple chord sequences - the first is heard in the first 7 bars and the second is an 8 bar sequence heard throughout the piece. The melody continually varies and develops becoming increasingly busy and difficult. It could almost be considered a small set of 'funk' variations.

Funk Theory has been performed in its various forms by euphonium soloists throughout the world. It is great fun to play and creates a little 'light relief' during any concert.