The MusicBrainz database contains two types of information. The core data, consisting of factual data such as the names of albums, tracks and artists, is in the public domain. The remaining data, such as annotations, tags, opinions and ratings are protected by the Creative Commons Attribution-NonCommercial-ShareAlike 2.0 licence, which allows non-commercial use of the data under the conditions that MusicBrainz is given credit and that any derivative works are also made available under the same licence. Thus the linked data published by this project will follow the same licence arrangement. In particular, this allows the outputs of the project to be used freely in teaching and research.