It wasn't so much the music that was the problem for the production team, rather, it was the actuality.
What they got from the road workers was excellent, probably among the best from people like Jack Hamilton.
The problem, they felt, was the over-long sequences of technical detail from the experts, which they thought interrupted the flow of the whole thing - they were responding to previous criticisms of there not being enough detail of the trade.
I find your comments fascinating Rahere, though I'm not familiar enough with modern theatre production to add much to what you say.
I know the Theatre work done by The Critics was highly regarded in some circles; I got to meet Sam Wanamaker and Joan Littlewood during the Festival of Fools and Ian Cuthbertson appeared at the Singers Club once in a 'Poetry and Song' evening
Ewan's dream was to involve those members of the the Group in a theatre/music combination team, a failure which came to a somewhat undignified conclusion.
I was always interested in theatre, but not enough to be part of the changes in the Group when Ewan shifted the focus away from song; it's often forgotten that it was the theatrical side of the work that collapsed, not the song.
Jim Carroll