But, without talking down to them, Bach tried to find a musical language a child could grasp.
And growing up in the 1960's, rock is his musical language.
Since then, the prevailing musical language has changed enormously in the West.
Rather than deciding on one musical language from the many around him, he uses them all.
There was no judgment about my musical language being different.
"When all of the leaders are speaking the same musical language, I think it will be more efficient," he said.
The way we hear and use the musical language of Western culture also makes it possible for music to describe war.
"She creates a universe with its own rich and specific musical language," he said.
But already we can see from the public response that the musical language still works.
She was particularly interested in the evolution of musical language and various technical means available.