Can I specify the path to biblatex annotation files

The `biblatex` package allows you to write annotations to your bibliography as external files. I use those annotations to keep notes associated to the papers I read for my thesis.

Unfortunately, since the annotation of each bibliography entry has to be in a separate file, my TeX source directory gets quite cluttered. It would therefore be preferable if all annotations were in a separate directory but I cannot find a way to tell `biblatex` where to look for them. So my question is the following:

Is there any way to tell `biblatex` to look for the annotation files in a directory different from the current one?

-
Welcome to TeX.sx! Please add a minimal working example (MWE) that illustrates your problem. –  egreg Feb 9 '12 at 17:21
Have you tried just using relative paths? I know, for example, that this works just fine with bibtex and the bibliography file itself. –  Joe Feb 9 '12 at 21:34