Lovely video...but when you have four Merlins before you why on earth would someone hide the sound with music?
We usually don't realize but we pixel pilots are pretty spoiled when it comes to that. The producer of that wonderful video went with music because if there's any sound that can never be recorded it's the sound of a flying aircraft that is being filmed in 'spotview', like is about 90% the case with this particular video. It's not like you can just fly along with the camera plane and hold a microphone out of the window...

What they could've done is go the extra mile and create such a sound themselves with aid of recordings of the engines sound while the aircraft is parked. Preferably during an engine checkup. That's what we do overhere, already for years. Could very well be though that nobody involved in the development of this excellent video ever realized that there's a whole virtual flying world outthere...
Btw, fantastic sound suite for your Lancaster, Bazz ! Wonderful work on the external and internal models as well !

What about cockpit lighting ? Still to be implemented ? ( did the RAF use UV lighting during WWII ?...)
Cheers,
Jan