Going to concerts as a critic in the past weeks has been like a round of university reunions – seeing people in the music world with whom I’ve had no contact since before the world closed down, and noticing how much they’ve aged (as they were no doubt noticing with me). But then the music world itself has aged, at an accelerated rate, during the past year and a half of misery. And as it edges back to life, we’ve all been making quiet assessments of how well, or otherwise, it’s weathered the ordeal.