ISORELLI, Dionisio. — Musician, born in Parma in 1544, died in Rome on 21 April 1632. After serving at the Medici court in Florence as an organizer of spectacles (e.g., the intermedi of 1589), he came to Rome, where in 1599 he entered the Congregation of the Oratory at Vallicella as a layman.
He collaborated with E. Del Cavaliere in the staging of *Rappresentatione di anima e corpo*, actively working for the establishment in Rome of that recitative style which had already brought them together in Florence to promote the renewal of Italian music. I. was a skilled viol player and composer himself: the *Rappresentatione del figliol prodigo* on a text by Fr. Agostino Manni, for which he is thought to have composed the music, together with Del Cavaliere’s *L’anima e corpo*, is an example of those spiritual representations that have the greatest affinity with the Oratorio properly so called. In the new recitative style, he wrote Lamentations for Holy Thursday. Two of his lauds: “Perché così facesti” and “Mentre a noi vibra” are found in the *Tempio armonico* of Animuccia (Rome 1599, part 1, pp. 102 and 151).