Opera is musical score combined with dramatic work in which actors perform drama while singing accompanied by an orchestra. Along vocal and instrumental music, opera includes drama art, acting and dance, as well as art elements which are seen in stage decor and actor costumes. Operetta is a stage-musical genre of opera with mostly bright caracter, spoken dialogs, musical parts and dance. An opera libretto is written expressly as text base to opera. Large number of opera libretto were created customizing some literary work requirements of opera art. According to Salazar, there are three important types of opera: opera of social perfection (16th and 17th century), opera of nature and body (18th century) and opera of hegemonic codification of practice (19th and part of 20th century). There are several types of opera. One of them is OPERA BUFFA (Italian: comic opera) italian type of comic opera. OPERA – COMIQUE (French: comic opera) is type of opera developed in France in 18th century, and its content can be both serious and comical. OPERA SEMISERIA (Italian: semiserious opera) is the 18th century term for a serious opera with some comical scenes. OPERA SERIA (Italian: serious opera) at the end of 17th century and in 18th century, the name of the opera libretto with serious, tragic content. Italian opera of the 17th century in its form was sung piece. Words were decorated by music and it made them expressive. In the French opera dominated dance, and in the English speech. The first Croatian opera is Love and Malice by Lisinski composed in 1843-46 in ecstasy of Illyrian revival. Great significance for the presentation of dramatic action have dramatic characters who are preoccupied with this act and who embody stage it. Disciplined opera audience feels show like a real experience, talks about it last long, discussing about the details, and in conversation, opera is re-experiencing. The director is invisible conductor of the show. Only he sees action in full along with events that come to life on stage.