The second volume continues a comprehensive history and practical manual of vocal art, surveying pedagogical methods, schools, and institutional settings while weighing their decline. It blends historical anecdotes about influential teachers and celebrated singers with exposition of a practical-speculative method that links physiological study of the vocal organ to registers, timbres, and ornamentation. The author reproduces a complete treatise of a noted pedagogue, explains why isolated exercises are preferable to vocalizzi, and advocates systematic drills that separate technical elements—breath control, register blending, trills and diction—for clearer, more efficient instruction.