MusicBrainz is a project that aims to create an open data music
database that is similar to the freedb project.
founded in response to the restrictions placed on the Compact Disc
Database (CDDB), a database for software applications to look up audio
CD (compact disc) information on the Internet.
expanded its goals to reach beyond a compact disc metadata (this is
information about the performers, artists, songwriters, etc.)
storehouse to become a structured open online database for
MusicBrainz captures information about artists, their recorded works,
and the relationships between them. Recorded works entries capture at
a minimum the album title, track titles, and the length of each track.
These entries are maintained by volunteer editors who follow community
written style guidelines. Recorded works can also store information
about the release date and country, the CD ID, cover art, acoustic
fingerprint, free-form annotation text and other metadata. As of
26 July 2016[update],
MusicBrainz contained information
about roughly 1.1 million artists, 1.6 million releases, and 16
million recordings. End-users can use software that communicates
MusicBrainz to add metadata tags to their digital media files,
such as FLAC, MP3,
Ogg Vorbis or AAC.
1 Cover Art Archive
2.1 Proprietary services
2.2 AcoustID and Chromaprint
4 Client software
5 See also
7 Further reading
8 External links
Cover Art Archive
MusicBrainz allows contributors to upload cover art images of releases
to the database; these images are hosted by Cover Art Archive (CAA), a
joint project between
Internet Archive and
MusicBrainz started in
Internet Archive provides the bandwidth, storage and legal
protection for hosting the images, while
MusicBrainz stores metadata
and provides public access through the web and via an API for third
parties to use. As with other contributions, the
is in charge for maintaining and reviewing the data.
Cover art is
also provided for items on sale at
Amazon.com and some other online
resources, but CAA is now preferred because it gives the community
more control and flexibility for managing the images.
Besides collecting metadata about music,
MusicBrainz also allows
looking up recordings by their acoustic fingerprint. A separate
application, such as
MusicBrainz Picard, must be used for this.
MusicBrainz started using Relatable's patented TRM (a
recursive acronym for TRM Recognizes Music) for acoustic fingerprint
matching. This feature attracted many users and allowed the database
to grow quickly. However, by 2005 TRM was showing scalability issues
as the number of tracks in the database had reached into the millions.
This issue was resolved in May 2006 when
MusicBrainz partnered with
MusicIP (now AmpliFIND), replacing TRM with MusicDNS. TRMs were
phased out and replaced by MusicDNS in November 2008.
AcoustID and Chromaprint
In October 2009 MusicIP was acquired by AmpliFIND. Some time after
the acquisition, the MusicDNS service began having intermittent
problems. Since the future of the free identification service was
uncertain, a replacement for it was sought. The Chromaprint acoustic
fingerprinting algorithm, the basis for AcoustID identification
service, was started in February 2010 by a long-time MusicBrainz
contributor Lukáš Lalinský. While AcoustID and Chromaprint are
MusicBrainz projects, they are closely tied with each
other and both are open source. Chromaprint works by analyzing the
first two minutes of a track, detecting the strength in each of 12
pitch classes, storing these 8 times per second. Additional
post-processing is then applied to compress this fingerprint while
retaining patterns. The AcoustID search server then searches from
the database of fingerprints by similarity and returns the AcoustID
identifier along with
MusicBrainz recording identifiers if known.
Since 2003, MusicBrainz's core data (artists, recordings,
releases, and so on) are in the public domain, and additional content,
including moderation data (essentially every original content
contributed by users and its elaborations), is placed under the
Creative Commons CC-BY-NC-SA-2.0 license. The relational database
management system is PostgreSQL. The server software is covered by the
GNU General Public License. The
MusicBrainz client software library,
libmusicbrainz, is licensed under the GNU Lesser General Public
License, which allows use of the code by proprietary software
products. In December 2004, the
MusicBrainz project was turned over to
the MetaBrainz Foundation, a non-profit group, by its creator Robert
Kaye. On 20 January 2006, the first commercial venture to use
MusicBrainz data was the Barcelona, Spain-based Linkara in their
Linkara Música service. On 28 June 2007,
BBC announced that it
has licensed MusicBrainz's live data feed to augment their music Web
BBC online music editors will also join the MusicBrainz
community to contribute their knowledge to the database. On 28
July 2008, the beta of the new
Music site was launched, which
publishes a page for each
KDE audio player
Banshee – multi-platform audio player
Beets – automatic CLI music tagger/organiser for Unix-like systems
Clementine – multi-platform audio player
Microsoft Windows CD ripper
Demlo – a dynamic and extensible music manager using a CLI
iEatBrainz – Mac OS X deprecated
foo_musicbrainz component for
Foobar 2000 –
Jaikoz – Java mass tag editor
Max – Mac OS X
CD ripper and audio transcoder
Windows metadata editor and music organizer
MusicBrainz Picard – cross-platform album-oriented tag editor
MusicBrainz Tagger – deprecated
Microsoft Windows tag editor
puddletag – a tag editor for
PyQt under the GPLv3
Rhythmbox music player – an audio player for Unix-like systems
Sound Juicer – GNOME CD ripper
Zortam Mp3 Media Studio –
Windows music organizer and ID3 Tag
Freedb clients can also access
MusicBrainz data through the freedb
protocol by using the
MusicBrainz to FreeDB gateway service,
List of online music databases
^ "About". MusicBrainz. MetaBrainz. Retrieved 4 May 2015.
^ "Musicbrainz.org Site Info". Alexa Internet. Retrieved
^ a b "Database Statistics". MusicBrainz. Retrieved 2016-07-26.
^ "WHOIS Lookup". ICANN. Retrieved 23 March 2015.
^ Highfield, Ashley. "Keynote speech given at IEA Future Of
BBC Press Office, 2007-06-27. Retrieved on
^ Swartz, A. (2002). "MusicBrainz: A semantic Web service" (PDF). IEEE
Intelligent Systems. 17: 76–77. doi:10.1109/5254.988466.
^ Fabian Scherschel (10 October 2012). "
MusicBrainz and Internet
Archive create cover art database". The H. Archived from the original
on 7 December 2013.
^ "New fingerprinting technology available now!" (Press release).
MusicBrainz community blog. 2006-03-12. Retrieved 2006-08-03.
Music Services: News Archived 2013-09-21 at the Wayback
^ Introducing Chromaprint – Lukáš Lalinský
^ How does Chromaprint work? – Lukáš Lalinský
MusicBrainz Licenses". Archived from the original on April 13,
2003. Retrieved 2015-10-23. CS1 maint: BOT: original-url status
MusicBrainz License as of 13-11-2010.
^ Kaye, Robert (2006-03-12). "The
MetaBrainz Foundation launches!"
MusicBrainz community blog. Retrieved
^ Kaye, Robert (2006-01-20). "Introducing: Linkara Musica".
MusicBrainz. Retrieved 2006-08-12.
^ Kaye, Robert (2007-06-28). "The
BBC partners with
Music Metadata". MusicBrainz. Retrieved 2007-07-10.
^ Shorter, Matthew (2008-07-28). "
Music Artist Pages Beta". BBC.
MusicBrainz and the
BBC as of 2013-03-16
Making Metadata: The Case of MusicBrainz. Jess Hemerly. Master's
project at UC Berkeley. 2011.
Wikimedia Commons has media related to MusicBrainz.
MusicBrainz – official site
MusicBrainz info at the
Cover Art Archi