This toccata is the last piece in 2nd "Suite de Pièces de Fantaisie" op.53. One could describe it as a wild night ride under dark and tormented skies (sorry for the unushamed romanticism :-)).
The Clair de lune posted two or three days ago was a try to see how Oloron could deal with Vierne in his calm dreamy mood. Here, it's to test this organ in Vierne's violent and "noisy" mood.
The main drawback is - IMHO - encountered in the soft central part (from
1:15 and after) where the SW sound suffers a bit not to have a Diapason 8' nor 16' and 4' reeds. But, given the modest size of this organ, this lack is most normal and it would be quite unfair to complain. In the tutti sections, Oloron does - IMHO again - surprisingly well (surprisingly because 24 stops only, no 32'...) and sounds really like a much bigger Cavaillé-Coll. But there may be different opinions, of course :-)
PS : the aimed basic tempo was around quarter = 88, instead of Vierne's indication of 96. Among many CD recordings, there are a few around 96, but they sound very hurried for my taste and something a bit slower seems more natural ; anyway, 96 would be too fast for my fingers :-) :-)