I’ve noticed an inconsistency here e.g. between Dvorak’s 7th and 8th Symphonies
[https://musicbrainz.org/ws/2/work/17410093-8de4-36a9-b011-832db3c5cf7b?inc=aliases](http://Symphony No 8, 3rd movement)
[https://musicbrainz.org/ws/2/work/7f326c46-2a84-3a8f-92a1-a2d016d80dd2?inc=aliases](http://Symphony No 7, 3rd movement)
The individual movements of the 8th Symphony don’t have a key assigned (as an attribute in the XML), but those for the 7th (and 9th) do. Both symphonies have a key assigned to the entire work.
What is the preferred style? (I happen to believe it should be assigned at the entire work level only; the key usually only refers to how the symphony opens and doesn’t stay the same across, or even within, movements).