Salle Cortot has announced its May 2025 slate. Here is a roundup of the vocal performances on offer. First up is “Vous Avez di Reynaldo Hahn?” The program features several of the Venezuelan-born composer’s “Mélodies” as well as sections from his operetta “O mon Bel Inconu” and “Ciboulette.” Also on the program are sections from Puccini and Leoncavallo’s “La Bohème.” {…}