Binary package hint: amarok
When organising files using the "Organise Files" dialog (right click in any file in your collection) with a spanish locale (I guess is the same in other locales) and in the avanced mode, there's a summary of keywords I can use, they are all translated in spanish ( %artista, %año, etc), but the ones I have to use in the text box must be in english (%artist, %year, etc) see the attached screenshot.
DistroRelease: Ubuntu 9.04
Package: amarok 2:2.1.1mysql5.1.30-0ubuntu1~jaunty1
Uname: Linux 2.6.28-13-generic x86_64