A key to the drama : Or, Memoirs intrigues, and atchievements, of personages, who have been chosen by the most celebrated poets, as the fittest characters for theatrical representations. Calculated to gratify the public, not only with a circumstantial history of the persons, and to make the stage thereby more intelligible and interesting to those who frequent it; but that others, who from a variety of causes, have it not in their power to enjoy the representation, may nevertheless paruse the plays with a higher relish, and greater perspicuity. Containing the life, character, and secret history of Macbeth. By a Gentleman, no prosessed author, but a lover of history, and of the theatre.