Choral n°3 in a minor

The complete version is from 0:00, with registrations "as I feel them".
After, there are 3 extracts to demonstrate the "as on the score" registrations (very casual playing, just to show the sound) :
- at 13:01 the beginning (0:00 in the complete version)
- at 15:14 the build-up at the end of the second part (9:15 in the complete version)
- at 16:36 from the last crescendo to the end (10:54 in the complete version).

Obviously, no need to tell anything about this piece. As usual, such a statement means that something quite useless is going to be told. Here it is :-): it's about registration.

I have always felt uncomfortable with the registrations indicated on the score (foundations 8' and reeds 8' at all manuals, 16' and 8' at the pedal). Jean Langlais said "It's awful, but à Ste-Clotilde". I respectfully share the first half of his opinion but, quite ashamed, not the second half. Some points about this topic :

- musicologists agree on the fact that the registrations written on the manuscript are not by Franck's hand.

- musicologists seem to agree that the story of the quasi-dying Franck going a last time to Ste-Clotilde to registrate his 3 Chorals is a kind of an Arthurian legend concocted by the zealous Vincent d'Indy for the greatest posthumous glory of his master. In fact, it seems that Franck only heard his chorals played at the 3-hands piano at his home.

- the interpretation of this registration is not completely evident : does it mean "8' only, no 16', no 4' and above" or must it be understood as " registration on an 8' basis = no 16', but possibly including 4' and above" ?

to be followed in comment 1