The graduate thesis describes Croatian traditional music with an emphasis on Croatian traditional instruments. They are divided according to the way the sound is formed and according to the division into zones. According to the way the sound is formed, musical instruments are divided into idiophones, memrophones, aerophones and chordophones, and according to the division into zones, musical instruments are divided into the Pannonian, Alpine, Dinaric and Adriatic areas. The paper also discusses traditional music in the context of the Annual Performance Curriculum of Music and the Curriculum for the subject Music for the first, second and third grade of primary school. From the Annual Performance Curriculum, the principles, domains, concepts and educational outcomes on which the teaching of Music in the first three grades are based. Croatian traditional songs and traditional songs from other countries that are proposed for singing and listening in subject Music in the first, second and third grade were written out from the Curriculum. In the research part of the paper, Croatian traditional songs submitted for singing and listening in the first, second and third grade are analyzed from the textbooks of subject Music (Razigrani zvuci, Glazbeni krug and Moja glazba). By processing the results, it can be concluded that there are a large number of Croatian traditional songs that are recommended for singing. There are significantly fewer recommended examples of Croatian traditional songs to listen to. Examples of traditional songs for listening and singing include all areas and regions, but some are more represented than others. It has been found that increasing the level of education also increases the number of examples for singing and listening. With counters, it's different. They are also represented in large numbers, but their number decreases with the higher level of education. By processing the results, it was established which traditional instruments are mentioned in the textbooks.