(b Imola, 5 May 1756; d Munich, 1828). Italian castrato. He studied with Lorenzo Gibelli and made his début at the opera house in Fano in 1772. After touring extensively in Germany and the Netherlands, he sang at Stuttgart in 1779 for the future Russian Tsar Paul I. In 1780 Dal Prato was appointed to the court of Carl Theodor in Munich, where he spent the rest of his career. His voice was a high mezzo. His most famous role was Idamantes in W. A. Mozart's Idomeneo (1781), and he also sang in Antonio Salieri's Semiramide (1782), Ignaz Holzbauer's Tancredi (1783) and Georg Vogler's Castore e Polluce (1787). Mozart complained about the inexperienced singer's poor stage presence and had to teach Dal Prato his music. But Dal Prato was apparently eager to learn, and Mozart referred to him as his ‘molto amato castrato Dal Prato’. His singing was admired more for its grace and polished execution than its power or dramatic qualities.
From The Grove Book of Opera Singers in Oxford Reference.