"Mass Music", as a phenomenon and notion includes all kind of public musik (schlagers of the popular signers, ansambles, virtuos-instrumentalists), jazz, rock, everything which takes origin from music, films, radio- and TV programs, from the musical theatre –musical comedy and musicals, i.e. diverse forms with the view of their contents, style, genre composition, social function, terms of existence, age. The principal category is the rate of distribution in the public, its orientation towards the great mass of people and capacity to captivate the audience. This factor is backed up by appealing to spiritual experience of the widest sphere of audience, possibility to meet their living, social, aesthetic demands, to reflect common to their sphere themes, images and emotions, to lead a dialogue with this vast auditorium forcing it to the counter response, emotional co-experience and mutual creative activity.