The following PS has been added at the foot of the review of the 2015 Toulouse les Orgues festival –

A transcript of the Round Table discussion has now been posted on the Toulouse les Orgues website: http://www.toulouse-les-orgues.org/. The English version can be found here.
Extracts from some of the concerts can be found here.
Photos here.
A video with snippets of concerts can be found here, although the music that you hear is not always related to the visual images.

The full review can be found here.