Music and Time Annotation << Back Key Principles of the Formation of the Trombonist’s Performing Apparatus B.P. Pronin The article is devoted to the problem of the formation of the trombonist’s performing apparatus. The structure of the executive apparatus, consisting of two main departments – peripheral and central, is analyzed in detail. The central link is responsible for skills and abilities, and the peripheral link is responsible for the physiological processes involved in the game. It, in turn, includes general staging, breath staging, embouchure, as well as articulation and applicature staging. The position of the body, arms, legs and head when playing the trombone is responsible for the overall positioning, the positioning of breathing involves the ability to use all three types of performing breathing: chest, diaphragmatic and mixed, the setting of the assembled embouchure is necessary to ensure clean play, correct facial muscles and the development of performing abilities, articulation skills are important for the performance of various types of musical strokes, and applicature staging allows the performer to skillfully use the main and additional positions of the trombone, as well as competently use the valve F if necessary. Keywords: trombone, brass instruments, performing apparatus, embouchure, valve F, musical pedagogy, applicature. Pp. 32-39.