Dear Thomas,
Even if the current content model (and the corresponding prose which explicitely excludes bibliographical aspects...) does not seem to match, I have a strong intuition that what you want to describe, i.e. the setting about which a text is would be a good candidate for <profileDesc>. As a matter of fact, I would see the use of <setting> (see as close to appropriate.
<!-- setting of the performance -->

Le 28 août 08 à 21:46, Thomas Crombez a écrit :

Dear list members,

I have recently started to digitize a large corpus of Flemish theatre reviews from the interbellum period using TEI Lite. Apart from the usual beginner’s troubles, there is one problem I do not find easy to translate into TEI. 

My reviews stem from a variety of sources, which I can faithfully document using the @sourceDesc tag. Every review is translated to a separate XML file, even if it comes from a larger collection, such as a compilation of reviews. But every file actually needs to include more metadata about the review, namely, the performance it is about, the company that played it, the author who wrote it, the date it played, etc.

I cannot include these data in @sourceDesc, since the date of the performance, for example, is not always the same as the publication date.

Provisionally, I am using the @profileDesc tag, more specifically @creation, for these metadata. The Guidelines read: 
The creation element contains phrases describing the origin of the text, e.g. the date and place of its composition. 
Taken in a largish sense, this seems to include the ‘occasion’ for writing the text, e.g., the theatrical performance itself. But as Ron Van den Branden from CTB (who has greatly helped me learning TEI) remarked, it does look like an improper use of @creation, since the performance is only tangently related to the actual writing.

Other candidates for proper tags have proven problematical: @keywords and @textClass demand a strict taxonomy (so @date would be impossible to include), while @notesStmt seems too generic.

All help would be greatly appreciated. I’m including one of my TEI headers at the bottom of this mail for further reference.

Dr. Thomas Crombez

Theatre Studies
University of Antwerp | Stadscampus D 216 Prinsstraat 13 
B-2000 Antwerp | Belgium

t +32 (0)3 220 49 57

          <title>A machine readable transcription of Willem Putman, Jean-Jacques Bernard : "L'invitation au voyage", door het "Studio des Champs Elysées". </title>
          <author><persName key="cti_names.xml#WP">Willem Putman</persName></author>
          <sponsor>Universiteit Antwerpen</sponsor>
          <sponsor>Fonds voor Wetenschappelijk Onderzoek-Vlaanderen</sponsor>
          <principal><name>Thomas Crombez</name></principal>
          <editor><name>Nele Van de Velde</name></editor>
        <p>Universiteit Antwerpen, Theater- en Filmwetenschap, juli 2008</p>
<note type="abstract"></note>
            <author><persName key="cti_names.xml#WP">Willem Putman></persName></author>
            <title level="m">Tooneel-groei (1921-1926): Indrukken over het na-oorlogsch tooneel-herleven in ons land</title>
            <title level="a">Jean-Jacques Bernard : "L'invitation au voyage", door het "Studio des Champs ElysŽes".</title>
            <biblScope>pp. 220-238</biblScope>
<p>Corpus Toneelkritiek Interbellum: Vlaamse toneelrecensies en andere korte teksten over theater uit de periode 1919-1939</p>
<p>Removed OCR and obvious spelling mistakes, removed hyphenation at line endings, removed all references to pagination (removed page numbers; recombined paragraphs split on multiple pages)</p>
<date when="1925-05-25"></date>
        <orgName key="cti_names.xml#SdCE">Studio des Champs Elysées</orgName>
        <title type="drama.performance">L'invitation au voyage</title>
        <persName type="author.dramatist" key="cti_names.xml#JJB">Jean-Jacques Bernard</persName>
      <change who="[ID]" when="1111-11-11"></change>