I heard the podcast of 10 May programme, described in a gossipy way here:
http://www.bbc.co.uk/radio3/musicmatters/pip/lwjxu/What the BBC website didn't mention was Mr Z's contention, that I may have misunderstood, that music isn't sound, it is something else, and that's why he doesn't like digital recordings as they make the sound too clear.
I was not clear what music was meant to be, but he is probably on to something.
I suspect I have missed some item in the argument, or got the wrong end of the stick.
I liked Zimmerman's giggles. Giggles can be irritating, but not I found here. Clearly the man has a mind of his own and possibly the ego to go with it.
Is he widely regarded as stark staring bonkers and Tom Service was too overawed to hint as much, or do I just have a nasty suspicious mind?