I found a web site with a lot of photos of Peter in a recording session with some people that I don't know. The photos look to be recent, but it's hard to tell when the pictures were taken. So maybe he is playing / practicing.
Not being the most computer savvy person around here is the address.....
http://www.rudyrotta.com/depot/041109PeterGreen_2
www.rudyrotta.com/depot/041109PeterGreen_2