Rating System

MusicBrainz Rating System

Description

Rating is a new feature which has been introduced with the server release of November 23th, 2008.

It allows users to rate MusicBrainz entities (artists, labels, releases and tracks).

Details

Each user rating is a number between 1 and 5. Then the system aggregate users ratings to compute the average community rating.

By default community rating is shown. As soon as user rates an entity, he/she will only see its own rating.

Display of ratings can be disabled in User Preferences for those who don't care about ratings.

Meaning of the Colors

		Unrated
		Hover
		User rating
		Community rating

Web Service

The XMLWebService has been updated in order to allow to retrieve or update rating via WS in a similar way to how FolksonomyTagging works.

Either by the new /rating resource for submitting/retriving one specific rating: get --user=<editor name> --password=<password> --post-data=id=8f6bd1e4-fbe1-4f50-aa9b-94c450ec0f11\&entity=artist\&rating=3 http://test.musicbrainz.org/ws/1/rating

or by using the new inc parameters ratings, user-ratings with the artist, label, release or tracks resources as described in XMLWebService.