[vorbis] Request for Standardization: classical music TAGS
rillian at telus.net
Tue Oct 2 22:59:09 PDT 2001
On Tuesday, October 2, 2001, at 12:07 , Jonathan Walther wrote:
> The ALBUM, ARTIST, TITLE, and TRACKNUMBER tags aren't sufficient for
> classical music. MP3 muffed it, but since Vorbis is so flexible, I'd
> like to propose that ogg123 recognize and display the following
> optional tags, instead of giving an error message that it doesn't
> recognize the tags.
We discussed this quite a bit on irc earlier as well, and reached some
consensus, at least among the developers.
We agreed that some extra tags were needed. The main problem with
Jonathan's suggestion is that it's modal and won't "dumb down"
gracefully to the simpler displays of old players.
Therefore, rather than introducing COMPOSER et al. we decided to just
refine the overloading of ARTIST to mean 'composer' or 'original author'
in the case of classical music, while keeping the 'performer' sense for
pop. That way a player that just does '$artist - $title' will show
'Beethoven - Symphony No. 5' as is appropriate.
We added a new tag, PERFORMER, to handle the case when the performer
isn't the ARTIST. The conductor, orchestra, and soloists could all go
under (repeated) PERFORMER tags. The voice actor for an audio book would
also go here, while the original author of the book would be the ARTIST.
In the same discussion we decided to add CONTACT for contact info (url,
email, street address, what have you) and to standardize on DISCID
meaning the FREEDB index hash. I was one of the ones arguing for
scheme-specific has tag names, but consensus seemed to be for this. I
convinced myself by thinking of it as the 'quid' hash. :)
That left the issue of the title subdivision. I think it's reasonable to
put everything in the title ('Sinfonia for Strings in B minor "al Santo
Sepolcro" RV 621') but it also seems reasonable to support additional
tags since they do no harm. I'd suggest: OPUS, KEY, TEMPO, and MOVEMENT.
OPUS should probably include the catalog prefix if one is available to
distinguish ('OPUS=67' for Beethoven's 5th, but 'OPUS=RV 608' for
Vivaldi's Nisi Dominus.)
TEMPO would be things like 'allegro', 'vivace', '140 bpm'.
If there's no further comment, I'll add these to the spec in a 'if you
want them people are using these' section.
--- >8 ----
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