 Together with Marie-Claire Alain, Anton Heiller and Gustav Leonhardt, he made a considerable contribution to the rediscovery and promotion of historical performance practice on the Baroque organ and also the harpsichord.Together with his good friend and colleague Oscar Mischiati he is seen to have been the first promoter of the historical organ movement in Italy.This movement was and is concerned with the restoration of historical organs using old methods and techniques, reestablishing the original value of the instruments and enabling them to be appreciated.