Capocci was also one of the three foreign organists who performed in a series of organ concerts using the Cavaille-Coll organ at Trocadero during the 1889 Paris World Fair. In 1890, his performance with Guilmant and Polleri for the inauguration of the new organ of William George Trice at the Basilica of the Immaculate Conception in Genoa marked another point in favor of the Cecilian Movement that resulted from his work as a performer and tester of new organs.