AbstractBeauty/Music: Reflections on an Iridescent Concept – Graz Version – Starting from a theory of music (1: The Nature of Music), the author deals with the various facets of musical beauty chapter by chapter: 2. Expression, Feeling, Soul; 3. Beauty; 4. Expression of Feelings; 5. Expansion of Feelings (Gregorian chant, polyphony, Renaissance, Baroque, Classicism/Romanticism); 6. Parameters of Feeling; 7. Emancipation; 8. Meditation; 9. Memory; 10. Remembering; 11. Utopia and Process; 12. Theology (Religion); 13. Longing; 14. Summary. Some concluding remarks (15.) deal with the concept of grace.