there are 3 grades of concussions
grades 1 to 5
5 grades of beef 5 grades of veal 3 grades of lamb 3 grades of poultry 1 grade of pork
If you mean piano grades, there is one preliminary grade, eight actual grades and three diploma grades.
4.Fresman,softmore,juinor,senior.Unless you have higher grades you can skip grades.
In the ABSRM grading system there are 8 grades for violin.
It means all of your grades added up and divided by how many grades you have
it depends on how many grades you have all together you add all of your grades up and then you divide the the total number by the number of grades you have.