Thanks for the link. I'm a frailer or clawhammer (depends on who you ask) player but do admire bluegrass picking.
Here's some clawhammer on a mountain fretless banjo.
http://www.youtube.com/watch?v=VckQWryzAZE&feature=channel_video_title
I've heard Bluegrass described as industrial city music while the old time playing is country blues.
http://www.youtube.com/watch?v=vKpIef6KfvE&feature=channel_video_title
http://www.youtube.com/watch?v=-Tf75YyIMH4&feature=channel_video_title