Here's a little update: the yet-to-be-released version 1.1 is currently able to retrieve lyrics from "SYLT Database" website. There are only a few available there, but submitting via the plugin should take care of that soon enough :-)

Thanks for the links. I'll add support for the few firsts in time for the release of 1.1, this weekend, if all goes well.

Heavy developpement in progress :-)