Found this out on ibiblio:

JOHN MACANANTY'S COURTSHIP. Irish, Air (3/4 time). D Major. Standard. One part. "Both the air and the words of this ballad appear to me to possess much simple beauty and feeling. I learned them from my father when I was a mere child, and I never heard the air with any one else. The ballad embodies one of the many forms of a superstition formerly very prevalent in Ireland, and not quite extinct even at the present day‑‑namely, a belief that the fairies often take away mortals to their palaces in the fairy forts, lisses, and pleasant green hills. Macananty or Macanantan was a fairy king who formerly enjoyed great celebrity in the north of Ireland, and whose fame extended also into the south. There is a hill called Scrabo in the county of Down, near Newtownards, on which is a great sepulchral carn. Under this hill and carn Macananty had his palace; and the place still retains much of its fairy reputation among the people of the district. Macananty himself is remembered in legend; and his name is quite familiar, especially among the people who inhabit the mountainous districts exztending from Dundalk to Newcastle in the county of Down. I find that here they call him in Irish Sheamus Macaneandan‑‑James Macanantan; buy both names, John and James, must have been added in recent times" (Joyce). Joyce (Old Irish Folk Music and Songs), 1909; No. 391, pgs. 198‑199.



JOHN MACANANTY'S WELCOME HOME. Irish, Air (4/4 time). G Major. Standard. AAB. "For John MacAnanty, the Fairy King of Scrabo, near Newtownards, see John MacAnanty's Courtship" (Joyce). Joyce (Old Irish Folk Music and Songs), 1909; No. 314, pg. 147.

X:1

T:John MacAnanty's Welcome Home

M:C

L:1/8

R:Air

N:"Mod.: time well marked"

S:Joyce – Old Irish Folk Music and Songs (1909)

Z:AK/Fiddler's Companion

K:G

DGGA G2 GA|Bdef g2 fe|dBge dB AG|AG AB AB GE|DGGA G2 GA|

Bd ef g2 fe|dB gB Ac BA|GE GA G2:|

Bd|efgf ed Bd|edef g2 fe| dB ge dB AG|AG AB A2 Bd|efgf edBd|

edef g2 fe|dB gB Ac BA|GE GA G2||


From:
'Sayings, Proverbs and Humour of Ulster' PRoffessor Byers, Belfast, 1904

"A poppular superstition previals in the Ards district of County Down that John MacAnanty, the Northern Fairy King, lived on Scrabo Hill and held his court in the interior of the cairn on it's summit."