If there’s any doubt that the supergroup is still alive and kicking, look no further than Transatlantic’s current “Whirled Tour.” The band — featuring Dream Theater drummer Mike Portnoy, Marillion bassist Pete Trewavas, Flower Kings guitarist/vocalist Roine Stolt and former Spock’s Beard multi-instrumentalist/frontman Neal Morse ­— has reconvened after nearly a decade-long touring absence to play a very limited, six-date North American tour ►