Morris tune from Sherborne, Gloucestershire. Although Sharp visited Simpson at Upton, near Didcot, then in Berkshire, now in Oxfordshire, he had previously lived at Sherborne, and was Sharp’s informant for the Sherborne morris dances.
In the linked abc file this is tune number X:8
Constant Billy: This is the B music. The A music in Bacon’s Handbook of Morris Dances is taken from the Headington tune.