This graduation thesis consists of two parts. In the first part, I delved into singing technique. I aimed to explain all the elements necessary to master this type of singing, how these elements function, and the processes through which a singer progresses during their education. I tried to summarize the development and maturation that a singer undergoes from the beginning of their singing journey to complete mastery into several key points because this knowledge and research are acquired through practical teaching. Hence, it is essential to understand the theory and the processes happening within our bodies. In the second part, I focused on the program of the graduation concert, which spans various periods and styles. I described specific approaches to each of the mentioned compositions. Alongside the analysis of musical pieces and crucial information about composers, I translated the lyrics of all songs, aiming to make opera repertoire and classical music more accessible to anyone reading this work.