My favorite because of its great combination of architecture and landscape is Laon. See 07:24 and 08:03. And Bamberg cathedral's western towers are modelled on Laon cathedral's towers (08:50-09:04).

Greg and Sankt Michael - Greetings bretheren! Indeed, here is a little on the Organ in St Cecilia's Cathedral, Albi:

The origin of the classical organ whose actual case remains, is attributed to Christophe Moucherel (1736). This gigantic organ (width : 16.2 m) was worked upon by Francois & Jean-Francois Lepine (1747), Joseph Isnard (1779) and Antoine Peyroulous (1824). Then, it was then transformed into a romantic organ by the Claude brothers (1840), Thibault Maucourt (1865) and finally, Puget … [More]

@ACLumsden

As it's written, this is just a small selection (not mine).
Many cathedrals are missing.

For all who want to see and hear Albi cathedral: http://www.youtube.com/watch?v=NFaUeqYZDT8

Thanks, but where's Albi Cathedral, that magnificent mediaeval fortress!?