2010 J&R Musicfest and Tech Expo (Aug 26-29, 2010) This year’s J&R Musicfest and Tech Expo is a little light on “big names”, but as the old saying goes, “Shut up and stop complaining, it’s a free concert.” 2010 J&R Musicfest and Tech Expo (Aug 26-29) Fri. Aug. 27th (City Hall Park – Performances Start…