Ah - that would be - Hamish Henderson's 'Freedom Come all ye'

There is a SF story of a being planning to become its own monument, one which - when approached, would play 'The old Hundredth'

I thought of a dozen traditional songs, a couple of hymns, and Alices restaurant, and a couple of songs from the Quo - but it has to be F-C-A-Ye.

It is not my language, but it speaks both to me and for me.

Anne