The article was prepared as a part of the research on the assignment: «To develop strategic directions and mechanisms for the transformation of professional training of teachers of artistic-aesthetic profile for the purposes of socio–humanitarian and information security» of the sectoral scientific-technical program «Art». The subject of our research is to consider the role of creative musical-educational environment (CMEE) of a university in solving the problem of socio–humanitarian and information security. Having considered two security paradigms, the authors state that most optimal is development of the paradigm, in the implementation of which the worldwide educational system, including musical education, plays an important role. The natural environment that provides an opportunity to solve this problem is creative musical-educational environment. Admitting that not every musical environment is positive, the authors consider musical-communicative field (polarized space), the polysubject (socio–pedagogical community) and the phenomena of musical culture represented by CMEE. The formation of a dynamic semantic system of a personality is recognized as a mechanism that ensures psychological and moral-aesthetic stability of a personality, in the structure of which a high degree of correlation of subjective meaning of a musical work with personal values is noted, providing filtration of perceived information and actualizing the stability of a personality, society and the state.