The basic assumption of the theory of relativity is that "we can not talk about physical quantities such as velocity or acceleration, without specifying the reference system". "All movement is determined and measured in relation to other specific reference systems." At least that's what Wikipedia says, which may be true or not. Compatibility with the actual state is not important in the post-truth world, where everyone has the right not only to their own opinions, but also to their own facts, referring to emotions and personal beliefs. What is also a relative matter, because there are no facts, only interpretations. And even if they were, everyone has the right to present alternative facts and stick to them. We do not have your coat and what will you do to us?

The piece concerns issues related to relativity, referring both to the relativity of

beliefs as well as the perception of sound. Paradoxes of hearing, studied by Diana

Deutsch (Speech to Song Illusion, Phantom Words, Scale Illusion) where used, as well as the phenomenon of sound pareidoly (the impression of hearing familiar sounds, especially voices, among various kinds of noise) and electronic sounds disturbing perception, to name a few. Electronic layer also explores the voices of public figures who make statements that pass the truth. Their lies (or narratives?), through multiple repetitions, create a new sound reality (illusion?), turning into musical phrases, according to the principle that the human brain more willingly assimilates stimuli and messages that are already known to him. The amplification system, instead of trying to create similar sound image for all the audience (as it usually happens), aims to diversify the sound image depending on the point of hearing. Since, as we know, the perception of music is so strongly dependent on non-musical factors (visual, psychological, acoustic, or even what's written in program books), let's not pretend to be objective.