‘The modern early-music revival’ investigates the state of early music in recent times. Interest in early music is not new, but the field of early music did not become distinct until the twentieth century. Early music began with scholar-performers such as Arnold Dolmetsch, Robert Donington, and Thurston Dart. Medieval and Renaissance music is performed by mixed ensembles, although Gregorian chants have continued uninterrupted in Catholicism. Baroque is less about rediscovery, and more about de-familiarizing the familiar. The popularity of early music has led to professionalization and institutionalization, which has shifted the field away from its inclusive, participatory roots. Early music is now being suffused into mainstream orchestras.