Theme „From Porina to the Kings and grooms“ is my thesis. I tried to show Croatian opera continuous emergence and development of Porin Lisinski (as second Croatian opera, first performed in Zagreb in 1897) to the opera Kings and Grooms contemporary composer Sanja Drakulić (first performed at the National Theater Osijek 10 April 2011 on the eve of event 26th MUSIC BIENNALE). I did not intend to engage in an analysis of the same opera (which is a job that requires more detailed access to the same operas). Its modest knowledge let alone the auditory perception (comparing them and drawing conclusions based on that). It ordered the form and style of my thesis. Therefore, I performed its conclusions solely on the only currently available materials. I based in the main on existing journalistic works, on already published music criticism from various authors in already existing material (including a number of photographs of various theatrical moments, diverse costume and stage design details). Emerging so encourage stylistic diversity Porina Lisinski Concert Hall and a modern musical language of Kings and grooms S. Drakulić. I had to aim the following: encouraging stylistic peculiarities in creating a national style of our Croatian opera (throughout history, leaving the analysis of other more detailed insight into the interpretation of this complex structure). That is, these its modest dynamic figure I joined chronological display of national birth Croatian opera (from the late 19th to the early 21st century). Emerging so encourage stylistic diversity Porin Lisinski Concert Hall and a modern musical language of Kings and grooms S. Drakulić. I had to aim the following: encouraging stylistic peculiarities in creating a national style of our Croatian opera (throughout history, leaving the analysis of other more detailed insight into the interpretation of this complex structure). That is, these its modest dynamic figure I had to aim the following: encouraging stylistic peculiarities in creating a national style of our Croatian opera (throughout history, leaving the analysis of other more detailed insight into the interpretation of this complex structure).