As the first chords rang out and fans on crutches let out a rousing cheer alongside hundreds of other survivors and relatives of the dead, it was clear that Paris was looking for a moment of rock’n’roll catharsis.

As the first chords rang out and fans on crutches let out a rousing cheer alongside hundreds of other survivors and relatives of the dead, it was clear that Paris was looking for a moment of rock’n’roll catharsis.