Listening to BBC Radios 3 and 4 over the past week has been like meeting an old friend who, after decades of squeezing into age-inappropriate designer clothes, has suddenly reverted to a sensible wardrobe. It’s a pity that it took the death of our beloved Queen for this to happen, but I’ve been enjoying it while it lasts – because, like the miracle drug that Robin Williams gives his dementia patients in the film Awakenings, this dose of sanity will quickly wear off.