For solo Viola and ensemble. Stuart MacRae's Equilibrium was commissioned by the Kreisler Ensemble with support from the PRS Foundation, the RVW Trust, the Britten-Pears Foundation and Christoph Trestler.

It was first perfromed at the Abbey at Sutton Courtnay, Oxfordshire, 18th July 2012, given by Martin Outram (solo Viola) and members of the Kreisler Ensemble conducted by Matilda Hofman.