You guys may be familiar with this site, but I was not. You can play for free and download for a cost. Did not see any GJ but a really nice Jazz page with some early concerts. And check out the blues listing. For someone is chained to the computer by day, I am always looking for something to listen to. Which is why I buy too many cds! Enjoy..
http://www.wolfgangsvault.com/performer ... blues.html