The article presents and characterizes the most important approaches to the development of the musical ear of brass musicians in the process of their orchestral training. Professional training for the development of musical hearing among brass performers in institutions of higher education of the artistic direction will be effective and purposeful, provided that the musician observes continuous and thorough auditory self-control, which will ultimately help the performer to coordinate and direct the work of the entire performing apparatus as a whole. Professional mastery of musical ear is a key element of musical perception by a brass musician, figurative and emotional thinking that is synthesized on the basis of the perception of musical language, and therefore becomes the main basis for revealing the composerʼs idea by the performer and the embodiment and transmission of a musical image filled with a wide variety of artistic content. Possession of absolute hearing gives the musician-performer certain advantages, because he can accurately imagine the pitch of each sound before its real sound begins. Practice shows that it is quite possible to fully master the art of playing an instrument if you have good relative hearing. It is only necessary that the musical ear of the performer is sufficiently subtle and flexible, capable of constant development and improvement in the process of communication with the instrument and music. In the process of purposeful development of auditory abilities, the performer must quickly master the ability to perceive music in a complex way ‒ to simultaneously listen to the pitch of the melodic line, its intonation development, timbre coloring, rhythm, harmony, character of presentation. Without this skill, the performer will not be able to fulfill his main task ‒ to understand and reveal the artistic content of the music being performed.
 Keywords: earing; brass musicians; orchestra training; institutions of higher education; performance; competence; components.
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