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<title>DBTune - Music-Related RDF</title>


    		
  

  

    
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<h1 style="font-size: 250%;">DBTune.org</h1>


    		
  

  

    
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<div id="tagline">DBTune - <i>Serving music-related RDF since 2007</i></div>


    		
  

  

    
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<p>


    		
  

  

    
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<a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData"><img border="0" alt="Linking Open Data" src="lod.jpg" /></a>


    		
  

  

    
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<a href="http://www.elec.qmul.ac.uk/digitalmusic/"><img border="0" alt="Centre for Digital Music, Queen Mary, University of London" src="c4dm.png"/></a>


    		
  

  

    
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</p>


    		
  

  

    
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<h2><a name="disc" id="disc"></a>0. Disclaimer</h2>


    		
  

  

    
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<p>


    		
  

  

    
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This is a non-commercial site. The information contained in this site has been collected from several 


    		
  

  

    
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sources and its accuracy cannot be guaranteed. 


    		
  

  

    
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No copyright has been intentionally 


    		
  

  

    
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violated. If you feel a copyright has been violated please contact <a href="#contact">me</a> immediately and the material will be removed


    		
  

  

    
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</p>


    		
  

  

    
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<h2><a name="intro" id="intro"></a>1. Introduction</h2>


    		
  

  

    
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<p>


    		
  

  

    
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<a href="http://dbtune.org/">DBTune</a> hosts a number of servers, providing access to 


    		
  

  

    
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music-related structured data, in a <a href="http://linkeddata.org/">Linked Data</a> fashion. It now provides access to more than <a href="http://blog.dbtune.org/post/2008/04/02/DBTune-is-providing-131-billion-triples">14 billion RDF triples</a>.


    		
  

  

    
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All the services hosted here are based on open Web standards such as <a href="http://www.w3.org/RDF/">RDF</a>


    		
  

  

    
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and <a href="http://www.w3.org/TR/rdf-sparql-query/">SPARQL</a>.


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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This effort is part of the <a href="http://esw.w3.org/topic/SweoIG/TaskForces/CommunityProjects/LinkingOpenData">Linking


    		
  

  

    
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Open Data on the Semantic Web</a> community project, hosted by the <a href="http://www.w3.org/2001/sw/sweo/">Semantic


    		
  

  

    
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Web Education and Outreach</a> interest group.


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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<!--<b>


    		
  

  

    
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Please do get the <a href="http://dig.csail.mit.edu/2007/tab/">Tabulator Firefox Extension</a>.


    		
  

  

    
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</b>


    		
  

  

    
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Indeed, I removed the default redirection towards external RDF visualisation services, so all DBTune URIs will look much better


    		
  

  

    
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if you install it.-->


    		
  

  

    
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You can browse DBTune data using any of the following Semantic Web browsers:


    		
  

  

    
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<ul>


    		
  

  

    
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<li><a href="http://dig.csail.mit.edu/2007/tab/">Tabulator</a></li>


    		
  

  

    
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<li><a href="http://demo.openlinksw.com/rdfbrowser2/">OpenLink Data Explorer</a></li>


    		
  

  

    
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<li><a href="http://dataviewer.zitgist.com/">Zitgist data viewer</a></li>


    		
  

  

    
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<li><a href="http://beckr.org/marbles">Marbles</a></li>


    		
  

  

    
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<li><a href="http://www4.wiwiss.fu-berlin.de/rdf_browser/">DISCO</a></li>


    		
  

  

    
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</ul>


    		
  

  

    
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You can also use the <a href="http://dig.csail.mit.edu/2007/tab/">Tabulator Firefox extension</a> or the <a href="https://addons.mozilla.org/en-US/firefox/addon/8062">OpenLink Data Explorer</a>.


    		
  

  

    
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</p>


    		
  

  

    
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<h2><a name="concept" id="concept"></a>2. Quick overview of underlying concepts (or the "Semantic Web" in 10 lines... Don't slap me, please)</h2>


    		
  

  

    
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<p>


    		
  

  

    
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Resources on the Web can be far more than web pages. They can identify anything: <a href="http://moustaki.org/foaf.rdf#moustaki">me</a>,


    		
  

  

    
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<a href="http://dbtune.org/jamendo/artist/5">a French band</a>, <a href="http://zitgist.com/music/signal/6da76448-982a-4a01-b65b-9a710301c9c9">an audio


    		
  

  

    
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signal</a>, etc.


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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Such resources have associated <i>representations</i> (accessed, in our case, through <a href="http://en.wikipedia.org/wiki/HTTP">HTTP</a>), 


    		
  

  

    
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which may be either human-readable (an <a href="http://www.w3.org/TR/xhtml1/">XHTML document</a>,


    		
  

  

    
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for example) or machine-processable (<a href="http://microformats.org/">Microformats</a> or <a href="http://www.w3.org/RDF/">RDF</a>).


    		
  

  

    
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These representations may hold links to further resources, allowing to jump from one resource to another, which may be actually hosted


    		
  

  

    
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in different places. This is were the <i>Web</i> aspect comes into place.


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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Let's take an example. The resource <a href="http://dbtune.org/jamendo/artist/5">http://dbtune.org/jamendo/artist/5</a> identifies a French band, called


    		
  

  

    
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<i>Both</i>. Asking for a RDF representation of this resource gives us back the following statement:


    		
  

  

    
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<pre>


    		
  

  

    
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&lt;http://dbtune.org/jamendo/artist/5&gt; &lt;http://xmlns.com/foaf/0.1/based_near&gt; &lt;http://sws.geonames.org/2991627/&gt;


    		
  

  

    
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</pre>


    		
  

  

    
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We can then follow this <i>link</i> to get to a resource identifying a geographic location, located within the <a href="http://geonames.org/">dataset</a>.


    		
  

  

    
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Moreover, this <i>link</i> is also a resource identifier! So if we don't know what it means to be <i>based_near</i> something, we can


    		
  

  

    
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still access a representation of it, which would give us statements such as "<i>based_near</i> is a property, and it relates a person or a group


    		
  

  

    
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of person to a geographical location".


    		
  

  

    
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</p>


    		
  

  

    
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<h2><a name="datasets" id="datasets"></a>3. Available datasets</h2>


    		
  

  

    
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<p>


    		
  

  

    
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The datasets available on this server, as well as their interlinks, correspond


    		
  

  

    
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to the blue circles in the following diagram.


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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<img src="lod.png" alt="Depiction of the different DBTune datasets" width="70%"/>


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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Original diagram from <a href="http://dowhatimean.net/">Richard


    		
  

  

    
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Cyganiak</a> under the <a href="http://creativecommons.org/licenses/by-sa/3.0/">CC-BY-SA</a> license.


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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The following datasets are available on this server:


    		
  

  

    
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<ol>


    		
  

  

    
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<li><a href="http://dbtune.org/jamendo/">Jamendo</a>, holding data from the <a href="http://jamendo.org/">Jamendo website</a> (<a href="http://dbtune.org/jamendo/#query">SPARQL end-point</a>


    		
  

  

    
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available, as well as browsable URIs, <a href="http://dbtune.org/jamendo/#dump">RDF dump available</a>) ;</li>


    		
  

  

    
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<li><a href="http://dbtune.org/magnatune/">Magnatune</a>, holding data from the <a href="http://magnatune.com/">Magnatune label</a> (<a href="http://dbtune.org/magnatune/#query">SPARQL end-point</a>


    		
  

  

    
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and browsable URIs, <a href="http://dbtune.org/magnatune/#dump">RDF dump available</a>) ;</li>


    		
  

  

    
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<li><a href="http://dbtune.org/bbc/peel/">BBC John Peel sessions</a>, holding <a href="http://bbc-hackday.dyndns.org/">data released during the Hackday, 2007</a> (<a href="http://dbtune.org/bbc/peel/#query">SPARQL end-point</a> and browsable URIs, <a href="http://dbtune.org/bbc/peel/#dump">RDF dump available</a>) ;</li>


    		
  

  

    
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<li><a href="http://purl.org/ontology/chord/#symbolservice">A chord symbol service</a>, holding descriptions of chords, generated on-the-fly (browsable URIs)</a></li>


    		
  

  

    
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<li><a href="http://dbtune.org/last-fm/">AudioScrobbler data</a>, displaying your last 10 played tracks as RDF linked to <a href="http://musicbainz.org/">Musicbrainz</a> dereferencable URIs</li>


    		
  

  

    
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<li><a href="http://dbtune.org/myspace/">MySpace data</a>, providing URIs and associated RDF representations for top-friends and available tracks on <a href="http://myspace.com/">MySpace</a></li>


    		
  

  

    
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<li><a href="http://dbtune.org/musicbrainz/">Musicbrainz data</a>, powered by <a href="http://www4.wiwiss.fu-berlin.de/bizer/d2r-server/">D2R server</a> and a <a href="http://motools.svn.sourceforge.net/viewvc/motools/musicbrainz/musicbrainz_mo.n3?view=markup">D2RQ mapping</a>, SPARQL end-point available</li>


    		
  

  

    
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<li><a href="http://dbtune.org/bbc/playcount/">BBC playcount data</a>, linking <a href="http://bbc-programmes.dyndns.org/">The BBC Programmes linked data</a> and <a href="http://dbtune.org/musicbrainz/">the Musicbrainz linked data</a>, SPARQL end-point available</li>


    		
  

  

    
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<li><a href="http://the.echonest.com/analyze.html">Echonest Analyze</a> XML to Music Ontology RDF <a href="http://dbtune.org/echonest/">transform</a></li>


    		
  

  

    
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<li><a href="http://dbtune.org/henry/">Henry</a>, a SPARQL end-point interpreting signal processing workflows and providing on-demand content-based data</li>


    		
  

  

    
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</ol>


    		
  

  

    
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</p>


    		
  

  

    
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<h2><a name="links" id="links"></a>4. Links to external datasets</a></h2>


    		
  

  

    
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<p>


    		
  

  

    
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The following dataset interlinking have been achieved:


    		
  

  

    
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<ol>


    		
  

  

    
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<li><a href="http://dbtune.org/jamendo/">Jamendo</a> to <a href="http://zitgist.com/music/">Musicbrainz</a> (using some kind of <a href="http://blog.dbtune.org/post/2007/06/11/Linking-open-data%3A-interlinking-the-Jamendo-and-the-Musicbrainz-datasets">record linkage technique</a>)</li>


    		
  

  

    
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<li><a href="http://dbtune.org/jamendo/">Jamendo</a> to <a href="http://geonames.org/">Geonames</a></li>


    		
  

  

    
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<li><a href="http://dbtune.org/magnatune/">Magnatune</a> to <a href="http://dbpedia.org/">DBPedia</a></li>


    		
  

  

    
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<li><a href="http://dbtune.org/bbc/peel/">John Peel</a> to <a href="http://dbpedia.org/">DBPedia</a></li>


    		
  

  

    
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<li><a href="http://dbtune.org/musicbrainz/">Musicbrainz</a> to <a href="http://dbpedia.org/">DBPedia</a>, <a href="http://dbtune.org/myspace/">MySpace</a> and <a href="http://www.lingvoj.org/">Lingvoj</a></li> 


    		
  

  

    
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<li><a href="http://dbtune.org/bbc/playcount/">BBC playcount data</a> to


    		
  

  

    
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<a href="http://bbc-programmes.dyndns.org/">BBC Programmes</a> and <a href="http://dbtune.org/musicbrainz/">Musicbrainz</a></li>


    		
  

  

    
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</ol>


    		
  

  

    
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</p>


    		
  

  

    
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<h2><a name="ack" id="ack"></a>5. Acknowledgements</h2>


    		
  

  

    
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<p>


    		
  

  

    
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All the things provided by this server relies on the work of many people. Let's try to mention a few:


    		
  

  

    
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<ul>


    		
  

  

    
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<li>The <a href="http://musicontology.com">Music ontology</a> community</li>


    		
  

  

    
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<li><a href="http://sonictruths.net">Christopher Sutton</a>, for taking care of the server</li>


    		
  

  

    
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<li>Everybody in the <a href="http://linkeddata.org">The Linking Open Data on the Semantic Web SWEO project</a></li>


    		
  

  

    
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<li>The <a href="http://dbpedia.org/">DBPedia</a> people, for letting me steal their CSS and their db* pattern</li>


    		
  

  

    
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<li>The <a href="http://www.bbc.co.uk/radio/">BBC audio and music interactive</a> folks</li>


    		
  

  

    
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<li>The <a href="http://jamendo.org/">Jamendo</a> and the <a href="http://magnatune.com">Magnatune</a> teams</li>


    		
  

  

    
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<li><a href="http://www.swi-prolog.org/">SWI-Prolog</a> developers, especially <a href="http://www.science.uva.nl/~wielemak/">Jan Wielemaker</a>, for all


    		
  

  

    
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his really fast replies to our really annoying emails :-)</li>


    		
  

  

    
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<li>The <a href="http://www.okfn.org/">Open Knowledge Foundation</a></li>


    		
  

  

    
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<li>And everybody in the <a href="http://www.elec.qmul.ac.uk/digitalmusic/">Centre for Digital Music</a>!</li>


    		
  

  

    
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</ul>


    		
  

  

    
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</p>


    		
  

  

    
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<h2><a name="contact" id="contact"></a>6. Contact</h2>


    		
  

  

    
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<p>


    		
  

  

    
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<a href="http://moustaki.org/">Yves Raimond</a>, <a href="http://www.elec.qmul.ac.uk/digitalmusic/">Centre for Digital Music</a>, Queen Mary,


    		
  

  

    
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University of London


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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E-mail: yves __at__ dbtune __dot__ org


    		
  

  

    
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</p>


    		
  

  

    
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<p>


    		
  

  

    
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<a href="http://moustaki.org/foaf.rdf#moustaki"><img alt="FOAF" src="http://moustaki.org/img/foaf.gif" style="border: 0px solid ; width: 62px; height: 22px;"/></a>


    		
  

  

    
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</p>


    		
  

  

    
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<script type="text/javascript">


    		
  

  

    
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var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www.");


    		
  

  

    
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document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E"));


    		
  

  

    
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</script>


    		
  

  

    
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