The gallows pole. I like the idea of there being a Led Zeppelin version.

They got it from Leadbelly: Leadbelly: Gallis Pole

The website with the curious name of 'Mainly Norfolk' is very useful if you want to know about different recordings of a particular folk song. For example:

Mainly Norfolk: Maid Freed from the Gallows

There doesn't seem to be an orchestral arrangement of that song, which is a pity - it ticks plenty of other boxes.