Roger,
And this is the right place to put information about organ concerts! Please do let us know what you think of the concert .. and the sound of the AR in particular. I love the sounds we get from the AR. They seem very 'rich', and 'different' from any other organ. Maybe because of the 'default tuning' as explained by Peter Anderson here:
Pitch within KeyboardsThe experience you will get by listening as part of the audience will be completely different to what you hear when you are sitting at the AR and playing it yourself.
Another professional who played an AR 100 for concerts was Steve Allison. He didn't hang on to his AR for very long though as he said loading in Registrations was a nightmare. It took for ever! I'll be interested to know how Chris Jones copes with that. Tell stories/jokes between pieces he plays? I did look for Steve Allison in the Organfax list but can't find him, so he must have given up. When I saw him (before he got his AR 100) he had an EL 90.
Hugh