Some good information on the physiology of the voice and voice disorders can be found at:
Vocal fry is very common these days. Is it hurting your voice?
What about those kids on America’s Got Talent?
What things cause wear and tear on your voice, and what happens as you get older?
This is Dr. Larry Hensel’s website. Alexander practitioners are rare in this part of the country. He’s in Laramie.
Would you like to see what the vocal folds look like?
https://www.youtube.com/watch?v=P2pLJfWUjc8 – Explanation and diagrams
https://www.youtube.com/watch?v=-XGds2GAvGQ – Quartet scoped
https://www.youtube.com/watch?v=hfOZxJnY4c8 – Scope and no scope
I’ll bet there are some things you’ve got wrong about the Copyright law.
What can you do with a music degree?