So i can only answer a few of these...
I'm A violist so I'm learning the other clefs.
I still don't know bass clef though.
1) a,b,c,c,c,b,c,d,d,d,c,b,c.....(I don't know how long you want me to go on but i'm stopping here.)
4) metzo forte
5) staccato
See the website:
https://www.sheynetuffery.com/page/Profile.html
Hope you can find what you are looking for!
Answer:
Yes of course. We already have devices that can read facial expressions and respond to them. At some point technology will evolve to the point that it will understand hand signs as well. It can be used to support a conversation with someone who is hard of hearing, or teach people how to sign in ASL without an actual teacher.
Explanation: