http://zed.cbc.ca/go.ZeD?user_id=28563&page=contentTwo videos are available. Martha is the lesser-known sister of Rufus Wainwright, daughter of Loudon.
Very difficult to find her CD's (unless you live in NY).
Click "Content uploaded" near right of screen.
There are many artists on ZED, most of whom I've never heard. Sarah Harmer has a couple videos.