I think this should do it...
I'm travelling to Zürich tomorrow for DjangoCon, http://2012.djangocon.eu/schedule/arkestra-semantic-information-publishing-for-organ/, I'll also talk about the editor of course.
And Arkestra now has its own site: http://arkestra-project.org/.
Would you mind using https://www.dropbox.com/s/eh2lwm27tljgyhk/semanticeditor.png for the image on Bitbucket? That one's quite out of date.