After some thought, we made a small change to our decision on how phonemic renderings should be encoded. The phonemic rendering will now look like this:

<form>
<pron>
<seg type="phonemic">blah</seg>
<seg type="narrow">blah</seg>
</pron>
...
</form>

Important points to note:

1. There will always be a seg type="phonemic".
2. It will always be the first seg in a pron element.
3. Where there is an attested phonetic transcription from the field, that will be included with seg type="narrow"; if there is no such seg, that means there is no attested phonetic transcription.