There's been a fair bit of discussion in the OSR recently about the connections between Heavy Metal and D&D.
So here's Blue Oyster Cult with lyrics by a certain Michael Moorcock (one time resident of Ladbrook Grove and author of this writer's favorite fantasy adventure novels). I'd put Blue Oyster Cult in the "Hard Rock" category I suppose but in the late 1970s Fantasy and Rock were definitely cross polinating.
So as you listen just imagine the stories of Elric. . .Hawkmoon. . .Corum. . .Erekose. . .Cornelius. . .von Bek. . . Arflane. . .