From this nucleus the ensemble expands on a project-by-project basis, adding singers, bowed strings, wind, brass, and other continuo instruments as required. Committed to historical performance, the ensemble believes that, far from being an academic cul-de-sac, developing authenticity leads to more exciting and convincing performances of early music.  In Echo therefore represents a movement of musicians, all of whom perform with the world's leading ensembles and who share the belief that the early music revival is an ongoing revolution.