As far as sound poetry, I still wonder if there is a border between poetry and music or if there is none at all. I have noticed that not all sound poetry needs to have a human voice or vocalisation, like Adachi's jacket. But is there a fine line in how that piece is not to be compared to a concerto, unless that distinction is based on the creator's content and purpose of that piece. If a composer makes a song and labels it as a poem, it would be poem, is it? Or that poetry has a border in what makes it a poem while music is broad and would include poetry as part of music as well as art, or vice versa.

I believe this piece is music but it sounds like poetry (to me). It is from Sakha (Siberia).

http://www.youtube.com/watch?v=uWcPn8hY5Ck&feature=related

(To Matt, this link is the one I am talking about with that sort of vocalisation and how it is hard to write out the sound.)