soundtrack for period dramas

After analysing a couple of soundtracks from various period dramas, I have gathered a general idea of what a period drama soundtrack usually consists of:

1) There is usually a minimalist piano accompaniment.
2) In moments of dramatic tension there is usually fast piano arpeggios accompanied heavily by strings.
3) the music is usually very light and slow especially in scenes shot outside.
4) usually the music is used to describe the emotion of the scene, for example in a scene permeated by anger it would be minor piano music with heavy minor strings.

Some examples of sound tracks that reinforce these codes and conventions are

Pride and prejudice - 2005

Jane Eyre