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Re: [MMSEM] Music Use Case & FOAF

From: Oscar Celma <ocelma@iua.upf.edu>
Date: Wed, 28 Mar 2007 17:11:46 +0200
Message-ID: <460A85B2.9080207@iua.upf.edu>
To: Michiel Hildebrand <Michiel.Hildebrand@cwi.nl>
CC: public-xg-mmsem@w3.org, Yves Raimond <yves.raimond@elec.qmul.ac.uk>

Hi Michael,

Michiel Hildebrand wrote:
> The rdfize is very nice.
> It would be great if we could extend the api for batch processing.
Yes, this sounds reasonable.
Passing a URL parameter like a M3U [1] (a list of MP3 files), or an XSPF 
(XML file)[2] it could be an option.
>
> After uploading a mp3 file I get in return all the nice stuff about 
> the artist that was not in there before, however, I do not get the ID3 
> stuff about the track.
Good point!
> Is this intended?
Well, not really. I still need to implement some more stuff (the never 
ending story, you know!).
So, all the ID3 tags I can extract (via python ID3 module), and their 
status in the mapping (ID3->MusicOntology, MO) are:

* tags['title'] => DONE (already exported into RDF)

* tags['artist'] => DONE (already exported into RDF)

* tags['album'] => NOT DONE. I couldn't find a way to link a track to 
its album-release in the MO, only the other way around: "an album  
mo:has_track track".

* tags['year'] => PENDING. My proposal is to link it with dc:date.

* tags['comment'] => PENDING. My proposal is to link it with dc:description.

* tags['genre'] => PENDING. My proposal is to link it with mo:Genre, but 
there are other proposals, like a SKOS taxonomy defining Musical
Instruments [1], so probably doing the same for Musical Genres would be 
a good option (although nobody will agree on the taxonomy :-) )

* tags['track'] => PENDING. Probably link it with mo:trackNum

[ BTW, Yves Raimond (Queen Mary University. London, UK) one of the 
creators of the MO is CC'ed, so he can comment whether I'm wrong! :-) ]

+ plus other attributes such as:
duration of the track => PENDING. Probably link it with mo:signalTime

Hopefully, the final version will include all these missing mappings in 
the code. But, as usual coding it takes much than expected...

Thanks for the comments Michael.

Cheers, Oscar
[1] http://en.wikipedia.org/wiki/M3U
[2] http://www.xspf.org/
[3] http://www.ivan-herman.net/Misc/2007/Mu.rdf
Received on Wednesday, 28 March 2007 14:12:11 GMT

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