The night before Phish kicked off its four-night run at Morrison, COs Red Rocks Amphitheatre, Bostons Rubblebucket performed at Boulder, COs B Side Lounge. As some readers may recall, Rubblebucket percussionist Craig Myers also plays in Mike Gordons solo band. The Phish bassist showed up to check out Myers gig and took the stage with Rubblebucket the ‘Red Line Beat.’ Phish will perform at Mountain View, CAs Shoreline Amphitheatre this Wednesday, while Rubblebucket will appear at Brooklyns Bell House on August 7.