I first heard of this from an Adrian Edmondson and The Bad Shepherds album: https://www.amazon.co.uk/Yan-Tyan-Tethera-Metheral-Shepherds/dp/B002NKO1XW https://w

I first heard of this from an Adrian Edmondson and The Bad Shepherds album: https://www.amazon.co.uk/Yan-Tyan-Tethera-Metheral-Shepherds/dp/B002NKO1XW https://www.amazon.co.uk/Yan-Tyan-Tethera-Metheral-Shepherds... (Yes, it's that Adrian Edmondson from The Young Ones, Bottom etc)