The heroine is disheartened, sure that she can never match the queen's performance, but then looks into her fiancé's eyes and is inspired by her love for him.
Her song, while initially somewhat melancholy, gradually builds in speed and intensity until there can be no doubt as to who is the better fiddler.
Shocked, the Faerie Queen concedes that skill alone cannot compare to love and releases the heroine's fiancé.
It is also similar in plot to The Devil Went Down to Georgia, a song by the Charlie Daniels Band, although in this case the prize for winning the contest is a person rather than an object.
The story of a woman freeing her man from the Queen of the Fairies may be a reference to the legend of Tam Lin.