When creating a dictionary with phonetic transcriptions, it can be necessary to use multiple transcription notation systems (eg: IPA, SAMPA, ARPABET, etc..).
In TEI, the element '<pron>' is used; and although there are other attributes one can choose to specify the phonetic transcription system, '@notation' is the most semantically accurate.
Also, when one wants to most accurately record phonetic info in a language, it is often necessary to record info about pronunciation variants; for this the '<pVar>' element is the most rational choice.
Ideally the '@notation' attribute for expressing this in both the aforementioned elements, however that attribute is not available in <pVar>; (the closest thing to it is '@style')
It seems like given that the core purpose of both the "<pron>" and "<pVar>" elements is to express some kind of phonetic information with their only difference being the prominence of their respected values, that they should have the same attributes available to express that.. thus enabling the following:
<entry xml:id="people"> <form> <gloss xml:lang="ia">people</gloss> <orth>se'e</orth> <pron notation="ipa">sé.ʔè</pron> <pVar notation="ipa">sí.ʔì</pVar> <pron notation="zsampa">s e_H ? e_L</pron> <pVar notation="zsampa">s i_H ? i_L</pVar> </form> </entry>