Capocci also endorsed the proposal of the chapter of canons of St. John for the construction of two new organs that were installed after the renovation of the apse built by Pope Leo XIII.
Franz Liszt, while staying in Rome, sought to meet Capocci personally and expressed great esteem and friendship.
He was appointed a member of the organ faculty for the Pontifical Institute of Sacred Music in 1911 but was never able to teach because of an illness that debilitated him for months until his death in Rome in July 1911.
He was the mentor of several noted personalities, including Queen Margherita of Italy[2] and the Brazilian composer and organist Furio Francheschini.
Today, his compositions, which are not well known, are starting to be performed by organists in concerts, a sign of renewed interest in a teacher who, in all respects, ought to be considered one of the fathers of a new Italian organ school.