JONAS, EMILE (1827–1905), French composer, conductor, and cantor. He studied at the Paris Conservatoire where he received a second prize for harmony (1847). Jonas was professor of solfège at the Paris Conservatoire from 1847 until 1866. He composed several light operas in the style of *Offenbach and enjoyed success abroad as well as in France. He was music director at the Portuguese synagogue in Paris, for which he wrote two collections of songs, Shirot Yisrael (1854) and Shirei Yisrael (1886).