Research in the arts. The research methodology as a logical discipline. The method of the survey. Useable method. The method of observation. The method of content analysis. The experimental method. Sociometric method. Inductive and deductive reasoning. Principles of construction of deductive theory. Dates deductive theory. Content, formalized and formal theory. Axioms deductive theory. Priori and empirical deductive theory. Inductive method in the study. Cognitive methods. The analogy. Abstraction, deduction and specificity. Using available sources.