This thesis demonstrates the entire process of sound recording and processing, more precisely, the recording and processing of a composition performed by the “Posavac” Brass Orchestra. The thesis will describe the process starting from selection of the composition, performance and recording, all the way to post production. The objective is to use a technically well-recorded composition to show dedication and effort of the members of the brass orchestra who have played for many years in Ivanić-Grad and in its vicinity, as well as to use the recording for promotional purposes, hoping it would help the orchestra attract new members. The theoretical part describes the process of sound recording and processing, the equipment used, the reasons why certain recording techniques were implemented and what the author tried to achieve with them. The practical part describes how the theory was put into practice and explains why certain parts were approached in a certain way, given the current situation in the orchestra.