Schoenberg
Beethoven
twelve-tone system
cuneiform was the system of writing that the Sumerians invented if you are in sixth grade this is a question you will be getting in social studies! have fun with it :)
Alan Dower Blumlein
Arnold Schoenberg, Austrian composer in 1921.
Schoenberg
The 43-tone scale was devised by 20th-century American composer, Harry Partch.
beethoven
The system that regulates blood composition and gets rid of waste is the Excretory system.
Schoenberg
Beethoven
Carolus Linnaeus invented the classification system
letse
1950's solar system invented
Nikolas Tesla invented the ignition system in 1898.
It was invented in 1982