I'm with the guy on p1 of this who said it's all an irrelevance anyway. Plus which, is there anything more cringe-inducing that being made to listen to someone's favourite songs, esp on a journey up the M1 to the other office that's a couple of hours away? No thanks.
And I know my wife & kids aren't particularly keen on my choice of Yes, ELP, John Martin, oddball offerings that crop up in Tidal playlists etc, so subjecting them to it as I ease out of this life doesn't seem fair to them when they'll be [hopefully] at their lowest ebb. Unless they're chuffed to bits to be shot of the grumbly old git at last. At least they'd be unlikely to be jolted into remembering me by hearing my departure tune on the radio.
I'll have whatever the organist can knock out as a bog standard recognisable funereal tune thanks.