B minor

Doubt & Trust (- Em)
The Ghost Of You
Tsubasa wa Pleasure Line (- D major)

Not much else here folks, there are of course fewer songs in the vein of minor keys. Only one thing FYI, is the (brackets) and the keys in them: These are songs which finish up on another key [like, a modulation, wot]

6 down, only 17 more to go....>_<