Conversation so far:
What is Harry Partch's theory in his book Genesis of a Music?
In Harry Partch's book Genesis of a Music, he made public his theories. He argues that Western music began to suffer from the time of Bach.
When was the time of Johann Sebastian Bach?
Johann Sebastian Bach was a German composer and musician of the Baroque period.
How did Western music suffer from the time of Bach, according to Harry Partch?
According to Harry Partch, after the time of Bach twelve-tone equal temperament was adopted to the exclusion of other tuning systems, and abstract, instrumental music became the norm.

Question: How did he fix the music norm ?
Self-contained rewrite: How did Harry Partch fix the music norm?