In this graduate thesis entitled ˝Preparation of solo and vocal Istrian music for various instrumental components”, I wrote about Istrian music in general, about the terms of the Istrian scale and the polemics it creates among ethnomusicologists and musicologists. Then I worked on the singing and singing ways in Istria, which takes place in an indefinite style of two-voiced narrow intervals. The next item I explained is the presence of musical instruments in Istria, which can be divided into tempered and non-tempered. I have described the instruments and their purpose in todays tradition, and the ways in which they relate to the people through time. Considering that the subject of graduation was the preparation, in the second part of the paper, I have analyzed two characteristically different compositions. The first piece is the work of the author Slavko Zlatić from the cycle of the Istrian Suite called Svatovska. I composed this song for two voices, piano, marimba, big drum, small drum, timpani, woodblocks and triangle. I have analyzed the prepared piece. The second piece I produced comes from a Christmas song by Oliver Oliver. I composed the song as a theme with variations, namely eight, for the string quartet. The procedures I have applied in preparation I also analyzed.