It enhances a feeling of social security. Most of these people are kins and despite the disintegration of mechanical societies and emergence of organic society, kinship ties still remain an important part of the society.
it's the last option. "wealthy males continued their education past the age 12"
Your two best options are:
ensures that the 12 notes are given equal important.
and:
is characterized by the works of Arnold Schoenberg.
the twelve-tone technique was made by Arnold Schoenberg and is also called "serialism" and "dodecaphony." It's a method that rejects keys.