Music has an entertainment nature. People enjoy listening to music, dancing to music, playing game with music, etc. Music makes an environmental contact. Favorable and familiar music establishes a comfortable and safe environment at once. This leads to the ISO-Principle of music.
Music is an emotional expression.
Man uses music to express his emotions that are sometimes difficult to express through language. Music is a form of communication. Although music is not a universal language, this enables man to communicate with others. Music is structured and time ordered and its predictability provides a basis for anxiety control, cooperation, and purposeful engagement. Music triggers memory.