Italian Violinist and composer. The earliest known reference to Cailò is as one of the circle of musicians around Carlo Manelli in Rome. From 1682 he occasionally played as a member of the Chapel of San Giacomo degli Spagnoli and San Girolamo della Carita; in November 1683, his name is found in a list of musicians of Congregazione sotto linvocazione S. Cecilia. In the same year he followed Alessandro Scarlatti to Naples, where he played at the Teatro San Bartolomeo. He settled in Naples, where he married in 1688. From April 20, 1684, to his death he was a musician in the royal chapel and from 1690 he played in the Cappella del Tesoro di Gennaro. He was appointed governor of the Congregation dei Musici di Palazzo Reale in 1707. Cail˜'s concert activity was governed by his work as a teacher: in 1686 he became a teacher at the Conservatorio di String Instruments for S. Maria di Loreto and eight years later he succeeded Nicola Vinciprova as a professor of violin at the Conservatorio di Santa Maria della Pietà dei Turchini. Among his students were violinists Francesco Barbella, Nicola Fiorenza, Angelo Ragazzi, Giovanni Antonio Piani and cellists Francesco Scipriani and Francesco Alborea. Of his compositions only two sonatas have survived