ALFIERI, the Abbate Pietro, born at Rome, about the year , was admitted in early life to Holy Orders; became a Camaldulian monk; and, for many years, held the appointment of Professor of Gregorian Music at the English College in Rome. He was an earnest student both of Plain Song and Polyphonic Music; and published some useful treatises on these subjects, and some valuable collections of the works of the great Polyphonic Composers. He died, insane, before the year