There are 2 versions :
- first on Aristide n°1 with the score's registration ;
- at 3'45", on Caen extended with a registration which tries to reproduce Vierne's registration when he recorded this piece on Aeolian organ rolls.
This piece, N°13 from the 24 Pièces en style libre, is rather neglected by organists despite its poetic "Once upon a time" atmosphere.
Vierne almost surely liked it because he recorded it on an Aeolian roll. I never could find any reedition of this recording but there is a detailed analysis of it in Rollin Smith's book (the book is readable on Google books, see pages 477 to 495).
Vierne used a registration quite different from the score's indications :
- the 4 main theme exposures are 3 times on a hautbois and the 4th time on a trumpet ;
- the REC. bars are played on flute 8, string 8 and flute 2.
- the last bars on a aeoline 8' solo.
The book says it was reputed to be the usual Vierne's registration of this piece, and so not a special mood for the Aeolian organ.