untune

verb

1. (transitive)To cause (something) to be out of tune; to make incapable of harmony, or of harmonious action.

   “How could communities, […] / Prerogative of age, crowns, sceptres, laurels, / But by degree, stand in authentic place? / Take but degree away, untune that string, / And, hark, what discord follows!”

   “The Trumpet ſhall be heard on high, / The Dead ſhall live, the Living die, / And Muſick ſhall untune the Sky.”

   “[…] do we not see in most collections that much time disunites, untunes, blackens, and by degrees destroys even the best preserved pictures.”

   “1800, Thomas Jefferson, letter dated 4 July, 1800, in Henry S. Randall, The Life of Thomas Jefferson, New York: Derby & Jackson, 1858, Volume 2, Chapter 11, p. 565, Our forte-piano arrived a day or two after you left us. It has been exposed to a great deal of rain, but being well covered was only much untuned.”

   “The events of the last two or three years, with their record of discontent and rioting among colonial peoples, even more, perhaps, the series of official reports inquiring into the causes of these events, have untuned that old rhapsody in red, white and blue, to which our imperialists delighted to listen, and in whose magic melodies they thought they heard the beat of progress towards social liberty and welfare.”