"Padstow", by Steeleye Span, and two versions of "Hal-An-Tow" - one by Oysterband, and one by Tempest. (I think those Hal-An-Tows are in the proper order. Let me know if they're not.)
Do not scorn to wear the horn,
It was the crest when you were born.
Your father's father wore it,
And your father wore it, too...