An article on nea.org describing the use of Three Tales in education:
I was delighted to discover that my 4th and 5th grade elementary
students became very excited on seeing "Hindenburg" -- as much about
what the video didn’t say as by what it did. Why did it blow up? When
did this happen? What is in their grandfather’s lifetime? Did everyone
die? Who were the Nazis? Good learning provokes even more questions.
The facts and ideas Korot and Reich worked with in Hindenburg were
economically chosen in the way a poet chooses words. Sounds and images
are repeated operatically over and over with fascinating variation to
express and impress single ideas. I thought students would find this
challenging, but instead it seemed to focus their attention.
This reminds me of a sociology book by Edward T. Hall I read in my twenties describing how Americans in general don't like repetition but that kids do. Via a quick Amazon search inside the book, here's what he really said:
In a culture such as our own, with a time system like ours, people are conditioned--with rare exceptions (teenagers who see a movie twenty times)--to viewing a single performance... We demand variety and shun what we have already seen. This introduces a certain superficiality, a certain lack of depth that leads to dissatisfaction with the simple things of life...
While I have only watched Three Tales once (didn't much care for it), how many times have I heard, say, Reich's Music for Mallet Instruments, Voices, and Organ? Twenty times? Fifty times? Maybe this just means Reich, on occasion, finds an effective balance between repetition and variation.
I should also mention the anti-repetitive Elliott Carter; I don't know his music well enough to know if he ever wrote anything remotely recurrent but nothing immediately comes to mind. I did find, again via Amazon search in a book by John Link (a link to Dr. Link here), this comment by Carter:
Carter warns "against mechanical repetition and its frequently disastrous results," which he constrasts with Mozart's "impression of constant human awareness.
Fortunately, I don't believe Reich and Mozart are mutually exclusive, although Glass and Carter might be.
Update: The Washington Post has a political article today mentioning the power of repetition:
Afterward, Grassley told reporters he would push for private accounts
even if a majority of the public does not appear behind the idea. "The
president knows one of the rules of politics is repetition," he said.