In the wake of the Houston Symphony strike, a lot of bruised egos and hard feelings are going to be inevitable. But if Houstonians really want to live in a serious, cultured city, says the Chronicle’s editorial board, they need to step up their support of what is clearly a vital institution. “Increasing attendance and ticket sales will require a clever marketing campaign and enticing concert programs. More than that, it will require from Houstonians a new and lively appreciation of the symphony and the realization that no important city can be without one. “