Review of Left­field ‘Left­ism’ at Blue­dot fes­ti­val, by Nicholas Mai “Come on Tom, let’s go and see some prop­er music”. And so the uncer­tain eight-year(ish) old boy duti­ful­ly fol­lows his father into the tent where Left­field are warm­ing up the crowd nice­ly as the first of the big name open­ing Fri­day acts at this year’s Bluedot…