Through his new, revolutionary yet simple perspective, violin maker and acoustics researcher Dieter Ennemoser opens up completely unforeseen possibilities for all phenomena related to hearing. For the first time, it is clearly proven that the perception of timbres and tonal colors as beautiful is not merely a subjective, learned, or conditioned response, but that other structures rooted in human nature also play a significant role. The implications of Ennemoser's discoveries are currently entirely unpredictable. The fields in which the C37 theory could be applied range from all areas of music to architecture, communication technology, and even medicine.