EVOLUTION.
ARTICLE 1. [THE OLD ITALIAN SCHOOL OF SINGING] " 2. [THE DARK AGES OF THE VOCAL ART] " 3. [THE TWO PREVAILING SYSTEMS] " 4. [THE RENAISSANCE OF THE VOCAL ART] " 5. [THE COMING SCHOOL OR SYSTEM] " 6. [CONDITIONS] " 7. [THE INFLUENCE OF RIGHT BODILY ACTION]
VITALITY.
ARTICLE 1. [THE FIRST PRINCIPLE OF ARTISTIC TONE-PRODUCTION] " 2. [THE SECOND PRINCIPLE OF ARTISTIC TONE-PRODUCTION] " 3. [THE THIRD PRINCIPLE OF ARTISTIC TONE-PRODUCTION]
AESTHETICS.
ARTICLE 1. [THE FOURTH PRINCIPLE OF ARTISTIC SINGING] " 2. [THE FIFTH PRINCIPLE OF ARTISTIC SINGING] " 3. [THE SIXTH PRINCIPLE OF ARTISTIC SINGING] " 4. [THE SEVENTH PRINCIPLE OF ARTISTIC SINGING]