The license of glyr changed from GPLv3 to LGPLv3 (See also #82).
Additionally the lyricswiki provider was fixed (thanks @bugdone)
and quite some typos were fixed (thanks @emillon).
There are more broken providers, but sadly I lack the time/motivation to maintain glyr on a regular base.
Therefore I would happily pass the development of glyr to a new maintainer. Please mail me if you are interested.