I wanted to post a link to the Youtube channel for the Geraldine Dodge Poetry Festival, which is the largest poetry festival in North America (and happens to take place in my hometown). They videotape all the evening readings, and they've been slowly making them available online. Some of them are more avant-garde (however we define it) than others, but I thought it might be interesting in terms of poetry as a performative art, linked to breath and to song. The Joy Harjo segment is really interesting.
Visit the Geraldine Dodge Youtube Channel