Dependence of sound perception on physical -- Physiological acoustics -- The human voice -- Basic elements of musical tone -- Theory of intervals -- The consonance problem -- The musical ear -- Key characteristics -- Musical talent -- Development of musical gapacity -- Inheritance of musical gapacities -- Creative work -- Receptive and productive musical accom-plishments of the deaf -- Pathology of musical perceptivity -- The origin of music -- Aesthetics and the psychology of music

1. Music -- Psychological aspects