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Re: [MMSEM-Vocabulary] Request for contribution (audio vocabularies)

From: Oscar Celma <ocelma@iua.upf.edu>
Date: Thu, 23 Nov 2006 18:22:25 +0100
Message-ID: <4565D8D1.1040306@iua.upf.edu>
To: "Hausenblas, Michael" <michael.hausenblas@joanneum.at>
CC: RaphaŽl Troncy <Raphael.Troncy@cwi.nl>, Christian Halaschek-Wiener <halasche@cs.umd.edu>, MMSem-XG Public List <public-xg-mmsem@w3.org>

Dear Micheal,

Here's a long mail (I do not have a wiki account yet, so please 
copy/paste to the wiki whatever you think is useful...)

Hausenblas, Michael wrote:
> RaphaŽl, Oscar, All,
> 4. W.r.t. the audio MM standards IMHO a bit of expertise from Oscar 
> would be of great help ... :)
 > RaphaŽl said:
 > "Furthermore, are "All Music Guide (AMG)", "MusicBrainz Metadata 
Initiative 2.1" and "Compact Disc Database (CDDB)" really vocabularies ?"

I would say neither AMG (although they have some interesting taxonomies 
with regard to genre/styles) nor CDDB are really vocabularies.
In my opinion ID3 specification is not clear enough (and very wide), the 
more concrete thing they propose is a list of genres.
On the other hand, MusicBrainz it is a vocabulary!

Moreover, some of these vocabularies should be taken into account, too 
(I've tried to add the categorization proposed whenever it was possible):

* Musicbrainz Schema
MusicBrainz defined an RDFS definition [1] (you can see the HTML output 
at [2]). Instances in RDF are available via their query language (see 
some results at [3]). An example of their MQ query is:

<mq:artistName>Pink Floyd</mq:artistName>
<mq:albumName>Dark Side of the Moon</mq:albumName>

-- Musicbrainz Discriminator/Category:
Representation RDF (R) / RDFS
Content Type audio (A)
Workflow production
Domain generic
Industry music

[1] http://www.ldodds.com/projects/musicbrainz/schema/index.rdf
[2] http://www.ldodds.com/projects/musicbrainz/schema/mb.html
[3] http://musicbrainz.org/MM/mq_examples.html

* In [4], there are lots of resources about Music Notation and XML. From 
the list available in [4], I would like to mention:

+ MusicXML [5], by Michael Good (Recordare).
"Recordare has developed MusicXML technology to create an 
Internet-friendly method of publishing musical scores, enabling 
musicians and music fans to get more out of their online music."
The DTD specification is available at [6].

-- MusicXML Discriminator/Category:
Representation XML (X) / DTDs
Content Type audio (A)
Workflow production
Domain generic
Industry music

+ MPEG Ad Hoc Group on Symbolic Music Representation, lead by Paolo Nesi 
(see [7]) are working on the standarization process of music notation. 
Don't know the current status, though.

-- MPEG Ad Hoc Group Discriminator/Category:
Representation XML (X) / DTDs?
Content Type audio (A)
Workflow production
Domain generic
Industry music

The Extensible Music Format (XMF) [8] is a family of music-related file 
formats created and administered by the MIDI Manufacturer's Association. 
It is based on MIDI files.
Their goal is (quoted from the website):

"Create an open standard file format for gathering together into a 
single file all media assets (and/or links to external media assets) 
required to render a MIDI note-based piece (or suite of related pieces) 
in a computer-based player (or possibly an instrument) with consistent 
audio playback across all players and platforms, and suited for 
interactivity, content protection, meta-data, and the Internet Ė and 
keep it simple."

[4] http://www.oasis-open.org/cover/xmlMusic.html
[5] http://www.recordare.com/xml.html
[6] http://www.recordare.com/dtds/index.html
[7] http://www.interactivemusicnetwork.org/mpeg-ahg/index.html
[8] http://www.midi.org/about-midi/xmf/

* Then there are other small projects/proposals such as:

+ The Kanzaki music ontlogy [9]
Quoted from the website:
"A vocabulary to describe classical music and performances. Classes 
(categories) for musical work, event, instrument and performers, as well 
as related properties are defined. Make sure to distinguish musical 
works (e.g. Opera) from performance/event (Opera_Performance), or works 
(String_Quartette) from performer (StringQuartetEnsemble in this vocab), 
whose natural language terms are used interchangeblly. The present 
version experiments more precise model to describe a musical work, its 
representations (performances, scores, etc) and a musical event to 
present a representation (a concert). Includes 30 keys as individuals."

-- Kanzaki Music Performance ontology Group Discriminator/Category:
Representation OWL DL
Content Type audio (A)
Workflow premeditation? / production?
Domain generic
Industry music

[9] http://www.kanzaki.com/ns/music

+ Last but not least, there is the music ontology [10] used by Foafing 
the Music project [11]. It includes some descriptors automatically 
extracted from the audio (e.g. Key and mode, beats per minute, meter, 
intensity, etc.)

-- Foafing the music ontology Group Discriminator/Category:
Representation OWL DL
Content Type audio (A)
Workflow premeditation
Domain generic
Industry music

[10] http://foafing-the-music.iua.upf.edu/ISWC2006
[11] http://foafing-the-music.iua.upf.edu/

That's all for now!


Oscar Celma

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Received on Tuesday, 28 November 2006 07:21:48 UTC

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