The purpose of the research is to examine the correlation between performer's personal characteristics and the features of his/her artistic activity. The authors analyze various interpretations, proving that the character and temperament influence the properties of the performed musical material, including: the nature of sound; an attitude to the author's text from literal repetition of the author's text to prevalence of own performance vision etc. It is established that the musician is required to have an ability to clearly and lucidly convey the content of compositions being performed to the listener, to tell about them in layman's terms, to find an approach to any audience. The practical value of the research is that developed methodological guidelines open up prospects for scientific comprehension of a musician as a subject of performing activity, contributing to the improvement of the system of performer's preparation in terms of the formation of musical thinking to study the mechanisms of interaction of interpreting personality, in particular, his psychology and established typology of performance interpretation.