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"But in fact the Nôtre-Dame organ was already well-supplied with solo (and chorus) mutations. I would be interested to see the reference to your statement that Cavaillé-Coll used mutations extensively at Nôtre-Dame, in order to overcome the particular acoustic environment of this large edifice. In any case - they failed to achieve this end - which was precisely why Cochereau had the first chamades added by Robert Boisseau (I think we agreed somewhere around 1969). It was only once these stops had been added (and, to be fair, the further re-arrangement of the plenum) that this instrument actually filled the sonic space of this vast Nave. \n  \nI would also question whether the 're-constituted' Cavaillé-Coll chorus on the G.O. is actually that exciting. Both from the tribune and from downstairs, I found that it was only with the addition of the surviving Boisseau/Cochereau choruses on the Solo and Grand-Chœur that the instrument came alive. (At least as far as the flue-work was concerned.) The re-constructed compound stops on the G.O. as progressions harmoniques were only used by Cavaillé-Coll for about eleven or twelve years. After this time, he was encouraged (largely by Guilmant) to return to including more classical choruses (with mutations) in his instruments. Personally, I find the chorus work of the present G.O. and Récit-Expressif inferior to that of the instrument prior to 1990. In particular, removing both chorus mixtures of the Récit-Expressif was, I believe strongly, a grave error of judgement. If one does not wish to use them, simply do not draw them - nor set them on any of the multiple combination devices available on this instrument. \n  \nWith regard to whether or not the present titulaires acted simply on whims - this may or may not be the case. But in the matter of the hideously ugly new console, I think that I know the answer to this question. \n  \nPerhaps Olivier Latry drives a Citroën 2CV.... \n  \nIncidentally, the organ builders (Quoirin) seem uncertain as to the spelling of 'Resonance'. On their website, in giving the current specification of the instrument, they spell it in two different ways: 'Resonnance' and 'Résonance'. On the new console, (on the divisional name-plate) it is spelled 'Resonnance' *. Surely the correct spelling is 'Résonance' ? \n  \n  \n  \n* See here: http://api.dmcloud.n...4c?wmode=direct  at 1'.40\". "
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