King Arthur: or, The British worthy. : A dramatick opera. /
Dryden, John,1631-1700.
Purcell, Henry,1659-1695.
London : printed for Jacob Tonson, at the Judge's-Head, near the Inner-Temple-Gate in Fleetstreet,
1695.
The music, composed by Purcell, "was never published, and it disappeared, probably within a very few years of its production"--DNB.
Wing (2nd ed., 1994)
MacDonald, H. John Dryden,
ESTC
Arthur, King.