A Merrymaking in Question

"I will get a new string for my fiddle,
And call to the neighbours to come,
And partners shall dance down the middle
Until the old pewter-wares hum:
And we'll sip the mead, cyder, and rum!"

From the night came the oddest of answers:
A hollow wind, like a bassoon,
And headstones all ranged up as dancers,
And cypresses droning a croon,
And gurgoyles that mouthed to the tune.