to think my husband dancing round the kitchen, singing 'on the twelve days of christmas'

[JesuslovesmethisIknow]

on repeat.

with stamping.

with whistling.

with tapping and FULL words...

is very cute but a bit OTT.

So.... would that BE unreasonable to ASK him for a new tune? or the hum one round him in the hope he changes tune

Im sure he thinks he is a one man, tapping, dancing band

That's so sweet! But, if you want him to stop, start shouting random numbers. He'll lose track and won't be able to continue.