As a beginning harmonica student in serious need of hours and hours (more hours than there are in a day) of practice on 3 hole bends and articulation,  I sometimes fritter away those hours listening in on Corey Harris.  Do other SJers cruise the hubs?  Does anyone have tips for taking it beyond sheer listening pleasure, making time spent on "other" hubs more valuable in terms of learning to play one's own instrument?

Like I try to practice counting and rhythmic chord accompaniment along with Corey (Yes, Dennis, I'M COUNTING, I'M COUNTING!)  Somebody a little further along with the harmonica could also practice fills (Maybe because Corey frequently plays with Phil Wiggins, his soloing seems to invite harp fills).

Also, there's a lot of overlap on the songs he plays and the ones on the JP harp hub.  (Check it out.)  And some great harp standards such as "Bright Lights, Big City."

And icing on the cake: Corey has lessons on singing... 

Any more ideas out there on utilizing the "other" possibilities provided by the SJ hub design?