Hello, I'm afraid that this can't be fixed for wheezy. The newer version of gmpc uses a new system based on libglyr to fetch lyrics, I'll upload a snapshot to experimental ASAP.
For a workaround, you can disable the discogs plugin in Music -> Preferences -> Metadata Handler -> uncheck "DiscoGS Artist and Album Image Fetcher". Sorry for the inconvenience and thanks for this bug report. -- Etienne Millon -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org