A reporter from western Australia, Christopher Lewis, interviewed me in 2013. He had used a piece of music I released using a Creative Commons license and was also interesting in talking my philosophy of releasing music in this way. The piece is called 'Sullivant'. This isn't about mail art specifically, but it is in the same spirit of collaboration and art as gift, which is of course very much in line with what mail art is about. Also, you can see what I look (and sound) like. I don't like using my likeness as a profile pic.
Here's the video he made featuring 'Sullivant'--it is the first six-and-a-half minute or so of a 17-minute composition.