The Science of Conducting: Von Karajan Was Right
DO ORCHESTRAL conductors do anything useful? Alessandro D’Ausilio of the Italian Institute of Technology, in Genoa, and his colleagues tried to answer that eternal question in a study published in the Public Library of Science.
Determining a conductor’s influence is tricky. Does a “good” conductor wangle bravura performances from his players, or simply preside over a self-organising virtuoso ensemble? To find out, Dr D’Ausilio watched two (anonymous) conductors leading five excerpts from Mozart’s symphony number 40 played by eight violinists from the Città di Ferrara orchestra.
Each violinist had an infra-red reflector attached to the tip of his bow, and the conductors had them attached to their batons. Dr D’Ausilio and his team were thus able to follow the movements of both bows and batons by bathing their little orchestra in infra-red light, which their cameras could see, but human beings cannot. They then used the movements of the reflectors to analyse who was affecting whom.