In 1969, a group of young stars took the stage together in the recently opened Queen Elizabeth Hall to perform a much-loved piece for strings and piano. Their collaboration was filmed by Christopher Nupen for what was soon recognised as a landmark documentary.

These performers – pianist Daniel Barenboim, cellist Jacqueline du Pré, violinist Itzhak Perlman, violist Pinchas Zukerman and Zubin Mehta on double bass – were to become known as some of the greatest musicians of the 20th century.