AMM and the Importance of Documentation

On the music of AMM:

This is music which is not exhausted by repetition, and even seasoned AMM admirers (ourselves included), who might once have rejected the very idea of 'mechanical reproduction,' have begun to accept the importance of documentation. This is music which transcends its moment. It does make sense to listen to it many times. It is never the same, always fresh, always developing, or developing new pathways in the listener. --Cook & Morton, Penguin Guide to Jazz on CD, 5th ed. (p. 38)