This from a colleague:
One of my favourites is Patrick Ireland's "Vowel Drawing". Check it
out http://www.ubu.com/sound/artist_tellus.html
<http://www.ubu.com/sound/artist_tellus.html>
It's interesting to contextualize this work historically beside the
"sound poetry" of Richard Huelsenbeck and Kurt Schwitters.
Ubu is a great resource for all things sound...