Jana Jonášová with Bendlová and then at the Academy of Performing Arts in Prague with Teodor Šrubař. She made her professional opera debut in 1965 at the Liberec Theatre as Konstanze in Wolfgang Amadeus Mozart's "The Abduction from the Seraglio". That same year she became involved with the Chamber Opera Prague. She remained committed to the Liberec Theatre through 1970 and then joined the National Theatre in Prague where she initially sang minor roles and worked in the opera chorus. In 1973 Jonášová was promoted to principal sopranos at the National Theatre and she quickly became one of the house's most important
Vladimir Rosing he directed "Tosca", "The Barber of Seville", and "Faust" in 1947 with an up-and-coming young bass named Jerome Hines. In 1948 the National Opera Association of Los Angeles, under his direction, presented "The Beggar's Opera", "The Abduction from the Seraglio", "Pagliacci", "Rigoletto", "Faust", and "La traviata" with soprano Jean Fenn. Productions of "The Marriage of Figaro", "The Queen of Spades", and "Don Giovanni" with the American Opera Company of Los Angeles completed 1948. For KFI-TV in 1949 Rosing presented 46 weeks of live televised opera sequences on Sunday afternoons which were voted Outstanding Musical Program of Local Origin by the