 The most important instruments include a spinet of about 1540 attributed to Alesandro Trasuntino, a harpsichord by Giovanni Battista Giusti of 1679, a harpsichord by Fabio da Bologna of 1686 and a combination of a harpsichord and a piano with two keyboards, one for the hammers, the other for the plectra, by Giovanni Ferrini of 1746.He frequently sat on juries for competitions at home and abroad, for instance in 1991 and 1994 when he was a jury member for the Internationaal Orgel Competition at the Festival of Ancient Music in Bruges.He wrote numerous papers in the field of musicology, was a member of National Academy of Santa Cecilia and published critical editions of the works of Girolamo Frescobaldi, Domenico Zipoli and Wolfgang Amadeus Mozart.