Choral Public Domain Library

Just to introduce myself.
I'm a music fan of all varieties and devoting some of my time to freeing up public domain music and making it available in open formats to encourage its use and to make it accessible.
I've been in IT a few years so I know a few tricks too...

I was wondering if it was possible to extend the search to include filetypes available? This may sound silly but I was showing the wiki to someone who has access to Finale and we must have looked at 100 scores before we found one.
They were impressed when we did tho!