Operosa returned to Euxinograd in 2009 and 2010 with performances of La Voix Humaine by Francis Poulenc,[4][5][6][7] and Roméo et Juliette by Charles Gounod.
In 2013 Operosa participated at the Night of Culture event in Herceg Novi in Montenegro for the first time with a staged performance of La Voix Humaine by Francis Poulenc.
The following year in September 2014 Operosa produced an international full-scale opera performance of Roméo et Juliette by Charles Gounod.
The project YOUNG@OPERA was created by Operosa in cooperation with partners Herceg Novi municipality and Ilija M. Kolarac Endowment with performances across Montenegro, Serbia and Bulgaria.
Mozart, G. Rossini, G.F. Handel, A. Vivaldi and Giulio Caccini performed by the Sofia Symphonic Orchestra together with conductor Nayden Todorov, mezzo-soprano Katherine Haataja, guitar by Rosen Balkanski and harpsichord by Magdalena Vasileva.