For an extensive example of indexing of an artist's different
recordings, releases, mixes etc, take a look at the Hawkwind Codex -
all released Hawkwind tracks, in all different versions, and which
albums/singles each different version was on.

http://www.starfarer.net/hwcodex.html

Cheers,

R.

On 1/30/07, Nic James Ferrier <[EMAIL PROTECTED]> wrote:
"Michael Smethurst" <[EMAIL PROTECTED]> writes:

> <snip>They should never be the exact same audio object with different
> [isrc] codes.</snip>
> I'm just not sure this happens in practice. According to our production
> staff ISRC codes are not as reliable as intended
>
> Don't think i was too clear on the description of the live stuff
> What we wanna do is provide set lists eg glastonbury
> The band may play some songs off singles, some off albums and maybe a
> cover or two
> These "songs" can't be mapped to "tracks" on releases cos they're not
> the same audio object. So we need to model a concept of song as an
> abstract entity that may have multiple renditions as tracks
> At the mo no music data providers model the song; only tracks
> This is one of the changes we're considering asking brainz for
>
> Any more suggestions?

You could have songs, performances (renditions?) and tracks.

You *might* have multiple tracks from a single performance. Consider
all those deadheads with their 8 tracks of the same happening.

An orchestra might choose to release multiple tracks of the same
performance for remixing purposes.

--
Nic Ferrier
http://www.tapsellferrier.co.uk   for all your tapsell ferrier needs
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