I spent yesterday evening at Butsner Ancient Farm, for this:

Samhain Festival?? Friday 20 October?SOLD OUT
Join us to celebrate the evening of Samhain in the magical surroundings of the great roundhouse. Between 7-10pm you will enjoy live music, professional storytelling by Jonathon Hue

Great fun. The instruments and music were perhaps some way from authentic, since they included banjos and sang of New Orleans but what the heck, just enjoy it for what it is.