perl-WebService-MusicBrainz (retrieve music metadata) WebService::MusicBrainz searches the MusicBrainz database, which contains a huge amount of music metadata, through the database's web service and returns objects with the found data. abcde can use WebService::MusicBrainz to look up metadata. Note: By default, the test suite is not run, because it requires a network connection. You can enable it by exporting TESTS=yes in the script's environment.