A famous video series from the eighties!
Edward L. Johnson discusses his Belcanto technique.
An introduction to Belcanto singing technique
Lesson 1 Parts of the Body used in Singing
Lesson 2 The Diaphragm and Intercostal Muscles
Lesson 3 Relaxed or Open Throat
Lesson 4 Resonation of Tone
Lesson 5 The Mask of the Face
Lesson 6 The Inhalation of the voice
Lesson 7 Vocal Ranges
Lesson 8 Breathing Exercise
Lesson 9 Concluding remarks and Singing exercises