Mayr’s ‘Medea’ at Teatro Nuovo: Stars evolved and aligned for the opera and La Rowley

Giovanni Simone Mayr (1763-1845) is hardly the sexiest name in opera history, but he became exactly that between the hours of 4 and 8 p.m. on July 29 at Purchase College — make that 4:35 p.m. Mayr’s Medea in Corinto needed time to warm up.